Motor oil lab tests – the new Royal Purple HPS and others - Team Camaro Tech
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post #1 of 13 (permalink) Old Aug 30th, 11, 05:46 PM Thread Starter
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Motor oil lab tests – the new Royal Purple HPS and others

All samples were taken from brand new, thoroughly shaken bottles of oil. And all tests were performed at ALS Tribology, formerly Staveley Labs, in Sparks, Nevada.

Royal Purple 10W30 HPS (High Performance Street)
Silicon = 7 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant)
Magnesium = 46 ppm (detergent/dispersant)
Calcium = 3626 ppm (detergent/dispersant)
Barium = <1 ppm (detergent/dispersant)
Total detergent/dispersant = 3676 ppm
Zinc = 1774 ppm (anti-wear)
Phos = 1347 ppm (anti-wear)
Moly = 189 ppm (anti-wear)
Total anti-wear = 3310 ppm
Potassium = 11 ppm (anti-freeze inhibitor)
Sodium = 2 ppm (anti-freeze inhibitor)
TBN = 10.2 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.3 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.



Royal Purple 5W30 XPR Racing Oil (tested 2 or 3 years ago)
Silicon = 4 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 1 ppm (detergent/dispersant)
Magnesium = 10 ppm (detergent/dispersant)
Calcium = 3039 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 3050 ppm
Zinc = 1421 ppm (anti-wear)
Phos = 1338 ppm (anti-wear)
Moly = 204 ppm (anti-wear)
Total anti-wear = 2963 ppm
Potassium = 0 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 10.9 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.6 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.



Royal Purple 5W30 API SL
Silicon = 9 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 15 ppm (detergent/dispersant)
Magnesium = 1192 ppm (detergent/dispersant)
Calcium = 2745 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 3952 ppm
Zinc = 1179 ppm (anti-wear)
Phos = 985 ppm (anti-wear)
Moly = 211 ppm (anti-wear)
Total anti-wear = 2375 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 11.0 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.7 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.
Note: Royal Purple is no longer producing their API SL oils. They have been replaced with a new API SN formulation for new cars.


Castrol 5W30 Edge API SM
Silicon = 5 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 57 ppm (detergent/dispersant)
Magnesium = 14 ppm (detergent/dispersant)
Calcium = 3206 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 3277 ppm
Zinc = 955 ppm (anti-wear)
Phos = 799 ppm (anti-wear)
Moly = 149 ppm (anti-wear)
Total anti-wear = 1903 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 10.1 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 9.7 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Castrol 5W30 GTX API SM
Silicon = 8 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant)
Magnesium = 9 ppm (detergent/dispersant)
Calcium = 2969 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 2982 ppm
Zinc = 888 ppm (anti-wear)
Phos = 873 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 1761 ppm
Potassium = 8 ppm (anti-freeze inhibitor)
Sodium = 114 ppm (anti-freeze inhibitor)
TBN = 7.5 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.4 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Valvoline 10W40 4 stroke Motorcycle Oil API SJ (tested 2 or 3 years ago)
Silicon = 20 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 137 ppm (detergent/dispersant)
Magnesium = 13 ppm (detergent/dispersant)
Calcium = 1849 ppm (detergent/dispersant)
Barium = 0 ppm (detergent/dispersant)
Total detergent/dispersant = 1999 ppm
Zinc = 1154 ppm (anti-wear)
Phos = 1075 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 2229 ppm
Potassium = 0 ppm (anti-freeze inhibitor)
Sodium = 126 ppm (anti-freeze inhibitor)
TBN = 7.1 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 14.6 (cSt range for SAE 40 is 12.5 to 16.2) And cSt (centistokes) in general terms, represents an oil’s thickness.
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post #2 of 13 (permalink) Old Aug 31st, 11, 05:56 AM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Great post...

It seems like the Royal Purple 10W30 HPS (High Performance Street) and the Castrol 5W30 Edge API SM are the top in the overall with Royal Purple 5W30 API SL coming in third. Cost factor per quart is....

Royal Purple 10W30 HPS = $9.00-$13.00 per quart
Castrol 5W30 Edge API SM =$6.00 - $7.00 per quart
Royal Purple 5W30 API SL=$8.50 -$9.50 per quart

Quite a fluctuation in overall pricing however all three are close in the protection.

Kev
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post #3 of 13 (permalink) Old Aug 31st, 11, 12:36 PM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Great post X2! Wow with those prices, I will stick with Summits racing's oil @ 5.95 qt. 1800 ppm of zinc and phos. http://www.summitracing.com/parts/SUM-MG10W40/

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post #4 of 13 (permalink) Old Aug 31st, 11, 01:31 PM
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Cool Re: Motor oil lab tests – the new Royal Purple HPS and others

I like the increase in Moly

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post #5 of 13 (permalink) Old Sep 28th, 11, 04:57 PM Thread Starter
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Racing Oil lab tests - and others

All samples were taken from brand new, thoroughly shaken bottles of oil. And all tests were performed at ALS Tribology, formerly Staveley Labs, in Sparks, Nevada. The oil samples are put into a Spectrometer which generates the results. This prevents the possibility of a technician introducing human error.


Detailed info of High Performance and Racing Oil:

Lucas 10W30 Racing Only (lab tested 2011)
Silicon = 18 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 1 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2929 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 9 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2943 ppm
Zinc = 2642 ppm (anti-wear)
Phos = 3489 ppm (anti-wear)
Moly = 1764 ppm (anti-wear)
Total anti-wear = 7895 ppm***
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 9 ppm (anti-freeze inhibitor)
Tin = 23 ppm (from bearings, bronze parts and piston coatings, but this is brand new oil……..)
TBN = 9.0 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

***NOTE: The zinc and phosphorus anti-wear levels of all oil in this list, are elemental values, which are NOT the same as ZDDP values. Earlier oil industry testing found that above .14% or 1,400 ppm, ZDDP INCREASED long term wear, even though break-in wear was reduced. And it was also found that .20% or 2,000 ppm ZDDP started attacking the grain boundaries in the iron, resulting in camshaft spalling.

But the correlation between elemental values and ZDDP values varies by motor oil manufacturer, and they do NOT publish their ZDDP values. That makes it difficult to impossible for the consumer to know how elemental and ZDDP values actually compare for any particular oil. However, these elemental values are so extremely high here, that this oil really is only suited for short life dedicated racing engines, as the name implies. Using zinc/phos levels this high in other engines could be cause for concern, since excessively high levels, used for more than just break-in, can “cause” engine damage rather than “prevent” it.

This by Brad Penn:
There is such a thing as too much ZDDP.
ZDDP is surface aggressive, and too much can be a detriment.
ZDDP fights for the surface, blocking other additive performance.
Acids generated due to excessive ZDDP contact will “tie-up” detergents thus encouraging corrosive wear.
ZDDP effectiveness plateaus, more does NOT translate into more protection. Only so much is utilized.
We don’t need to saturate our oil with ZDDP.


Redline 30wt Race Oil (lab tested 2011)
Silicon = 23 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 70 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 4 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 1982 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 3 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2059 ppm
Zinc = 2207 ppm (anti-wear)
Phos = 2052 ppm (anti-wear)
Moly = 1235 ppm (anti-wear)
Total anti-wear = 5494 ppm**
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 20 ppm (anti-freeze inhibitor)
Tin = 18 ppm (from bearings, bronze parts and piston coatings, but this is brand new oil…….)
TBN = 5.0* (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 9.9 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

**NOTE: The zinc and phosphorus anti-wear levels of all oil in this list, are elemental values, which are NOT the same as ZDDP values. Earlier oil industry testing found that above .14% or 1,400 ppm, ZDDP INCREASED long term wear, even though break-in wear was reduced. And it was also found that .20% or 2,000 ppm ZDDP started attacking the grain boundaries in the iron, resulting in camshaft spalling.

But the correlation between elemental values and ZDDP values varies by motor oil manufacturer, and they do NOT publish their ZDDP values. That makes it difficult to impossible for the consumer to know how elemental and ZDDP values actually compare for any particular oil. However, these elemental values are high enough here, that this oil really is only suited for short life dedicated racing engines, as the name implies. Using zinc/phos levels this high in other engines could be cause for concern, since excessively high levels, used for more than just break-in, can “cause” engine damage rather than “prevent” it.

This by Brad Penn:
There is such a thing as too much ZDDP.
ZDDP is surface aggressive, and too much can be a detriment.
ZDDP fights for the surface, blocking other additive performance.
Acids generated due to excessive ZDDP contact will “tie-up” detergents thus encouraging corrosive wear.
ZDDP effectiveness plateaus, more does NOT translate into more protection. Only so much is utilized.
We don’t need to saturate our oil with ZDDP.
*NOTE: The low TBN value in this Redline oil is also consistent with short term use only.

Joe Gibbs 10W30 XP3 Racing Oil (lab tested 2011)
NOTE: Some of the numbers here were so unusual and unexpected, that I had the lab re-test the oil sample on another day, after other oil tests showed normal results, just to ensure that the original test was valid. And the re –test came back with the exact same numbers. So, the numbers here, are what they are. But we know this line of oil works incredibly well. Because it was developed for, and is used by, winning Sprint Cup NASCAR teams.
Silicon = 4 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 259 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 1 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 356 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 4 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 620 ppm
Zinc = 743 ppm (anti-wear)
Phos = 802 ppm (anti-wear)
Moly = 1125 ppm (anti-wear)
Total anti-wear = 2670 ppm
Potassium = 5 ppm (anti-freeze inhibitor)
Sodium = 5 ppm (anti-freeze inhibitor)
TBN = 1.8 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 12.2 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

The detergent and TBN levels are so very low here, that this oil should most likely be changed after every outing, before those components are totally exhausted.

This oil line is one of the leading oils used in NASCAR Sprint Cup endurance engines, yet it has very low levels of zinc/phos, about the same as modern API SN oils. So, this is one example of a textbook case showing that you cannot really depend on elemental zinc/phos numbers alone, to predict how well an oil can protect against wear in high HP, high RPM engines. If you looked at the zinc/phos levels alone, like so many folks do, you’d think this oil should only be used in granny’s late model grocery getter.

This is something that the Royal Purple folks have said all along as well. Because their proprietary “Synerlec” additive is their primary extreme pressure additive, and their zinc/phos levels are only icing on the cake and do not need to be as high as it does with other oils.

The only way to really know how oils compare to each other with regard to preventing metal to metal contact, is to perform lab testing (quickest and most controlled method, particularly when testing a large number of oils) or real world on the road or on the track testing (time consuming, not well controlled, and perhaps impractical if a lot of oils are involved). This way you can test the whole additive package along with its base oil, to see how the overall product actually works. Simply looking at an oil lab test printout, is not enough information to always give you the right answer.

It’s the same thing with a new engine. You don’t just look at its build sheet to really see how well it will perform. You test it on the dyno and/or on the track (or road), to see the real deal.

So, with all that in mind, I’ve ordered an oil wear tester. And in the coming months, I’ll be performing impartial testing of all the oils on this list, and maybe a few others, to see how they rank against each other. I don’t really care which one wins or how they rank. I just want to “KNOW” which one wins and how they rank, so that I can make a better informed decision as to which oil I want to run in my own motors. I have no problem switching brands if the test results show the need to do so. Once I put all that data together, I’ll post the results for anyone interested in seeing it.



Joe Gibbs 10W30 HR-4 Hot Rod Oil (lab tested 2011)
Silicon = 4 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 6 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 164 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2964 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 3134 ppm
Zinc = 1247 ppm (anti-wear)
Phos = 1137 ppm (anti-wear)
Moly = 24 ppm (anti-wear)
Total anti-wear = 2408 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 2 ppm (anti-freeze inhibitor)
TBN = 9.4 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.6 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Royal Purple 5W30 XPR (Extreme Performance Racing) (lab tested 2008)
Silicon = 4 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 1 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 10 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 3039 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 3050 ppm
Zinc = 1421 ppm (anti-wear)
Phos = 1338 ppm (anti-wear)
Moly = 204 ppm (anti-wear)
Total anti-wear = 2963 ppm, plus their proprietary Synerlec extreme pressure additive that does not show up on basic lab tests
Potassium = 0 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 10.9 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.6 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.
Note: This RP XPR oil info has been posted previously, but it is included here for comparison purposes.


Royal Purple 10W30 HPS (High Performance Street) (lab tested 2011)
Silicon = 7 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 46 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 3626 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = <1 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 3676 ppm
Zinc = 1774 ppm (anti-wear)
Phos = 1347 ppm (anti-wear)
Moly = 189 ppm (anti-wear)
Total anti-wear = 3310 ppm, plus their proprietary Synerlec extreme pressure additive that does not show up in basic lab tests
Potassium = 11 ppm (anti-freeze inhibitor)
Sodium = 2 ppm (anti-freeze inhibitor)
TBN = 10.2 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.3 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.
Note: This RP HPS oil info has been posted previously, but it is included here for comparison purposes.


Valvoline NSL (Not Street Legal) 10W30 conventional Racing Oil (lab tested 2011)
Silicon = 6 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 1607 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 2 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 1618 ppm
Zinc = 1669 ppm (anti-wear)
Phos = 1518 ppm (anti-wear)
Moly = 784 ppm (anti-wear)
Total anti-wear = 3971 ppm
Potassium = 7 ppm (anti-freeze inhibitor)
Sodium = 190 ppm (anti-freeze inhibitor)
Tin = 13 ppm (from bearings, bronze parts and piston coatings, but this is brand new oil……..)
TBN = 4.4**** (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 9.8 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

****NOTE: The very low TBN value in this NSL oil would require increased oil change frequency, to avoid acid build-up. And Valvoline has said that their NSL oils should be changed at least every 500 miles.

Valvoline VR1 10W30 Racing Oil (Silver Bottle, lab tested 2011)
This one does NOT have the API symbol, but its text says it exceeds API SM
Silicon = 10 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 73 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2707 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 3 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2787 ppm
Zinc = 1472 ppm (anti-wear)
Phos = 1544 ppm (anti-wear)
Moly = 3 ppm (anti-wear)
Total anti-wear = 3019 ppm
Potassium = 6 ppm (anti-freeze inhibitor)
Sodium = 380 ppm (anti-freeze inhibitor)
TBN = 7.6 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.0 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Valvoline VR1 10W30 “SYNTHETIC” Racing Oil API SL (Black Bottle, lab tested 2011)
Silicon = 8 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 15 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2664 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2683 ppm
Zinc = 1180 ppm (anti-wear)
Phos = 1112 ppm (anti-wear)
Moly = 162 ppm (anti-wear)
Total anti-wear = 2454 ppm
Potassium = 5 ppm (anti-freeze inhibitor)
Sodium = 195 ppm (anti-freeze inhibitor)
TBN = 7.4 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.4 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Brad Penn 10W30 Penn Grade 1 High Performance Oil ( lab tested 2011)
This oil is from Bradford, Pennsylvania, thus the name Brad Penn.
Silicon = 9 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 646 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2518 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 3173 ppm
Zinc = 1557 ppm (anti-wear)
Phos = 1651 ppm (anti-wear)
Moly = 3 ppm (anti-wear)
Total anti-wear = 3211 ppm
Potassium = 5 ppm (anti-freeze inhibitor)
Sodium = 450 ppm (anti-freeze inhibitor)
TBN = 8.7 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.3 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Brad Penn 0W30 Penn Grade 1 High Performance Oil ( lab tested 2011)
This oil is from Bradford, Pennsylvania, thus the name Brad Penn.
Silicon = 6 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 13 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2922 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2939 ppm
Zinc = 1621 ppm (anti-wear)
Phos = 1437 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 3058 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 2 ppm (anti-freeze inhibitor)
TBN = 8.7 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

---------------------
The High Performance and Racing Oils on this list that have acceptable levels of all that is needed, and are suitable for High HP Street Hotrods and Street/Strip cars, as well as many dedicated race cars (including flat tappets and bronze dist gears) are:

Joe Gibbs Hot Rod Oil
Royal Purple XPR (Extreme Performance Racing)
Royal Purple HPS (High Performance Street)
Valvoline VR1 Racing Oil (Silver Bottle)
Valvoline VR1 “SYNTHETIC” Racing Oil API SL (Black Bottle)
Brad Penn, Penn Grade 1, High Performance Oil

NOTE: Joe Gibbs oil can be ordered directly from JoeGibbsDriven.com or Amazon.com
These Royal Purple oils can be ordered from Summit or Jegs
These Valvoline oils can be found with limits at some regular Auto Parts Stores, or can be ordered from Jegs, but NOT Summit, as I recall
The Brad Penn oil can be ordered from Amazon.com or from Summit as Howards Cam’s Brad Penn oil
And there are a variety of local shops, etc that carry some of these oils as well

------------------------

Detailed info of Mainstream Oil:

Mobil 1 5W30 API SN (lab tested 2011)
Silicon = 8 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 87 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 603 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 799 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 1489 ppm
Zinc = 801 ppm (anti-wear)
Phos = 842 ppm (anti-wear)
Moly = 112 ppm (anti-wear)
Total anti-wear = 1755 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 6 ppm (anti-freeze inhibitor)
TBN = 7.5 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

Mobil 1 5W30 Extended Performance (15,000 miles) API SN (lab tested 2011)
Silicon = 5 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 89 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 666 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 942 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 1697 ppm
Zinc = 890 ppm (anti-wear)
Phos = 819 ppm (anti-wear)
Moly = 104 ppm (anti-wear)
Total anti-wear = 1813 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 7.9 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

The detergent, anti-wear and TBN components of this Extended Performance oil are either about average or below average for typical API SN oils (even though some of the components are a little higher than in its standard Mobil 1 counterpart). TBN eventually becomes depleted as miles accumulate on oil in service. That’s “one” of the primary reasons for changing oil in the first place, to replenish the exhausted additive package. And it’s not unusual to see TBN values drop by as much as 60% from the original value, in only 5,000 miles. And with this oil starting out with a fairly low TBN value to begin with, it would seem very unlikely it could ever go a whopping 15,000 miles without having the TBN totally depleted well before reaching that 15,000 mile mark. So, this extended mileage claim appears to be only an unsupported marketing gimmick.

But, for those interested in long drain intervals, I’d suggest sending in a sample of this oil and having it lab tested at about the half way mark of 7,500 miles to see how much, if any, TBN remains. But, of course motor oil is typically already dark, dirty, contaminated and in need of changing by 5,000 miles anyway.


Quaker State 5W30 Ultimate Durability API SN (lab tested 2011)
Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 10 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2831 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2845 ppm
Zinc = 877 ppm (anti-wear)
Phos = 921 ppm (anti-wear)
Moly = 72 ppm (anti-wear)
Total anti-wear = 1870 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 7.9 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness
NOTE: This bottle’s plastic was so paper thin and flimsy, that just gripping the bottle with the cap off, squeezed oil up, out and all over the place. So, use extra care with this one.


Valvoline 5W30 SYNPower API SN ( lab tested 2011)
Silicon = 5 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 19 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2605 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2628 ppm
Zinc = 969 ppm (anti-wear)
Phos = 761 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 1730 ppm
Potassium = 11 ppm (anti-freeze inhibitor)
Sodium = 205 ppm (anti-freeze inhibitor)
TBN = 7.1 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Castrol 5W30 Edge w/ Titanium API SN (lab tested 2011)
Silicon = 4 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 55 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 1176 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 577 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 2 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 1810 ppm
Zinc = 818 ppm (anti-wear)
Phos = 883 ppm (anti-wear)
Moly = 90 ppm (anti-wear)
Titanium = 44 ppm (anti-wear)
Total anti-wear = 1835 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 10.1 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.6 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Pennzoil 5W30 Ultra API SM (lab tested 2011)
Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 363 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 13 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 3011 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 3387 ppm
Zinc = 806 ppm (anti-wear)
Phos = 812 ppm (anti-wear)
Moly = 66 ppm (anti-wear)
Total anti-wear = 1684 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 10.3 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.8 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Royal Purple 5W30 API SN ( lab tested 2011)
Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 8 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2822 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2834 ppm
Zinc = 942 ppm (anti-wear)
Phos = 817 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 1759 ppm
Potassium = 6 ppm (anti-freeze inhibitor)
Sodium = 424 ppm (anti-freeze inhibitor)
TBN = 7.7 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.3 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.


Royal Purple 5W20 API SN (lab tested 2011)
Silicon = 2 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 9 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2862 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2875 ppm
Zinc = 964 ppm (anti-wear)
Phos = 892 ppm (anti-wear)
Moly = 0 ppm (anti-wear)
Total anti-wear = 1856 ppm, plus their proprietary Synerlec extreme pressure additive that does not show up in basic lab tests
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 267 ppm (anti-freeze inhibitor)
TBN = 7.7 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 8.7 (cSt range for SAE 20 is 5.6 to 9.2) And cSt (centistokes) in general terms, represents an oil’s thickness.
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post #6 of 13 (permalink) Old Sep 29th, 11, 06:21 AM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Those numbers/results still appear to be lower than the Summit Racing oil. I would love to see what the actual numbers are from a lab?? Hint, hint.

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1969 Convertible LS3 TKO 600, 373
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post #7 of 13 (permalink) Old Sep 30th, 11, 06:44 AM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Quote:
Originally Posted by DT View Post
Those numbers/results still appear to be lower than the Summit Racing oil. I would love to see what the actual numbers are from a lab?? Hint, hint.
The last listing all say " Lab Tested 2011 "


Kev
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post #8 of 13 (permalink) Old Oct 2nd, 11, 11:45 AM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Quote:
Originally Posted by SixtyAte View Post
The last listing all say " Lab Tested 2011 "


Kev
Kev I was referring to the SUMMIT OIL. I know the other oils where tested at the lab. DUH! LOL

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post #9 of 13 (permalink) Old Oct 2nd, 11, 07:42 PM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Quote:
Originally Posted by DT View Post
Those numbers/results still appear to be lower than the Summit Racing oil. I would love to see what the actual numbers are from a lab?? Hint, hint.
Here's a used oil analysis of the Summit 10W-40 from my engine. This was the first "real" oil change, break in oil was dropped out after about 500 miles and the Summit oil went in.



'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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post #10 of 13 (permalink) Old Oct 11th, 11, 05:10 PM Thread Starter
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Amsoil lab test results

The samples were taken from brand new, thoroughly shaken bottles of oil. And all tests were performed at ALS Tribology, formerly Staveley Labs, in Sparks, Nevada. The oil samples are put into a Spectrometer which generates the results. This prevents the possibility of a technician introducing human error.

Amsoil 10W30 Z- Rod Oil synthetic ( lab tested 2011)
This one does NOT have the API symbol, but its text says it’s recommended for API SL and earlier applications.
Silicon = 4 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = <5 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 11 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2908 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 4 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2927 ppm
Zinc = 1431 ppm (anti-wear)
Phos = 1441 ppm (anti-wear)
Moly = 52 ppm (anti-wear)
Total anti-wear = 2924 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 8.3 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.6 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

This oil is suitable for Classic Cars, High HP Street Hotrods and Street/Strip cars, as well as many dedicated race cars (including flat tappet setups and those with bronze dist gears).


Amsoil 0W30 Signature Series (25,000 miles) synthetic (lab tested 2011)
This one does NOT have the API symbol, but its text says it’s recommended for API SN applications
Silicon = 6 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 191 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 18 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 3354 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 1 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 3564 ppm
Zinc = 824 ppm (anti-wear)
Phos = 960 ppm (anti-wear)
Moly = 161 ppm (anti-wear)
Total anti-wear = 1945 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 1 ppm (anti-freeze inhibitor)
TBN = 11.4 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

Based on the lab results here, this oil is only suitable for modern cat equipped cars. But it is NOT suitable for Classic Cars, High HP Street Hotrods, Street/Strip cars nor race cars, because of its low zinc/phos levels.

Even though extended drain intervals are not really in the best interest of an engine, because motor oil is typically dark, dirty, contaminated and in need of changing by 5,000 miles, for those who absolutely insist on extended drain intervals, this may be one of the best oils for that. Because it has a lot of extra detergent and acid neutralizer (TBN), so that there is a lot of reserve to draw from as these become depleted over time.

As a comparison, Mobil 1 Extended Performance (15,000 miles), looks rather poor for extended drain intervals when compared to this Amsoil product. This Amsoil motor oil has over twice as much detergent, and 44% more TBN than Mobil 1 Extended Performance (15,000). Take a look below:


Mobil 1 5W30 Extended Performance (15,000 miles) API SN synthetic (lab tested 2011)
Silicon = 5 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 89 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 666 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 942 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 1697 ppm
Zinc = 890 ppm (anti-wear)
Phos = 819 ppm (anti-wear)
Moly = 104 ppm (anti-wear)
Total anti-wear = 1813 ppm
Potassium = <5 ppm (anti-freeze inhibitor)
Sodium = 0 ppm (anti-freeze inhibitor)
TBN = 7.9 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 10.5 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil’s thickness.

The detergent, anti-wear and TBN components of this Extended Performance oil are either about average or below average for typical API SN oils (even though some of the components are a little higher than in its standard Mobil 1 counterpart). TBN eventually becomes depleted as miles accumulate on oil in service. That’s “one” of the primary reasons for changing oil in the first place, to replenish the exhausted additive package.

And it’s not unusual to see TBN values drop by as much as 60% from the original value, in only 5,000 miles. And with this oil starting out with a fairly low TBN value to begin with, it would seem very unlikely it could ever go a whopping 15,000 miles without having the TBN totally depleted well before reaching that 15,000 mile mark. So, this extended mileage claim appears to be only an unsupported marketing gimmick.

But, for those who insist on long drain intervals, I’d suggest sending in a sample of this oil and having it lab tested at about the half way mark of 7,500 miles to see how much, if any, TBN remains.

Yes, the Amsoil says 25,000 miles, where the Mobil 1 Extended Performance only says 15,000 miles, but here’s a comparison to other modern API SM/SN motor oils to see how they all stack up detergent and TBN-wise:

.................................................. Zinc.........Phos......Moly....Total det.........TBN

Amsoil 0W30 Sig. Series API SN..........824..........960.......161.......3564 ...........11.4
Mobil 1 5W30 API SN.......................801...........842.......1 12......1489............7.5
Mobil 1 5W30 Ext. Perf. API SN...........890..........819.......104.......1697 ............7.9
Quaker State 5W30 Ult. Dur. API SN.....877..........921.........72.......2845..... .......7.9
Valvoline 5W30 SYNPower API SN..........969..........761.........0........2628 ............7.1
Pennzoil 5W30 Ultra API SM.................806..........812........66..... ..3387..........10.3
Castol 5W30 Edge API SM....................955..........799.......149.. .....3277..........10
Castrol 5W30 Edge w/Ti API SN............818..........883.......90........181 0..........10.1
Castrol 5W20 Edge w/Ti API SN...........1042..........857......100.......1952 ...........9.5
Castrol 5W30 GTX API SM....................888..........873........0... ......2982............7.5
Royal Purple 5W30 API SN....................942..........817........0... ......2834...........7.7
Royal Purple 5W20 API SN....................964..........892.........0.. ......2875..........7.7
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post #11 of 13 (permalink) Old Oct 11th, 11, 06:27 PM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Quote:
Originally Posted by Steiner View Post
Here's a used oil analysis of the Summit 10W-40 from my engine. This was the first "real" oil change, break in oil was dropped out after about 500 miles and the Summit oil went in.


Thanks Steiner. Looks to me it still can't be beat.

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1969 Convertible LS3 TKO 600, 373
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post #12 of 13 (permalink) Old Nov 15th, 11, 11:37 AM
 
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Re: Motor oil lab tests – the new Royal Purple HPS and others

it would be nice to know the tests on just the conventional oils you can buy at the store.
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post #13 of 13 (permalink) Old Nov 15th, 11, 06:00 PM
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Re: Motor oil lab tests – the new Royal Purple HPS and others

Quote:
Originally Posted by loumanh View Post
it would be nice to know the tests on just the conventional oils you can buy at the store.
You can check the "Bob is the Oil Guy" oil analysis forums for that. They've got both used and virgin oil analysis; gas, diesel, motorcycle, gear, coolant.
http://www.bobistheoilguy.com/forums...p?ubb=cfrm&c=5

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Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
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