ZDDP Levels - A List for Various Oils - Team Camaro Tech
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post #1 of 9 (permalink) Old Dec 27th, 16, 11:12 AM Thread Starter
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ZDDP Levels - A List for Various Oils

Recent posts soliciting oil recommendations and related comments about zinc and phosphorous levels in various oils peaked my curiosity so I put together the attached table showing the Zn and P levels for a few popular oils. I've not attempted to provide a comprehensive list and your oil may not be on the list. If you have more interest I'd suggest consulting the MSDS or Product Technical Sheet for any oil you're considering, don't take my word for it. I just wanted to provide a starting point from which to begin your research or if you're using an oil with less ZDDP than you want it may be time to reconsider your choice. A level of ZDDP of about 1200 ppm seems to be the recommended minimum and levels that are too high may create certain negative unintended consequences.
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post #2 of 9 (permalink) Old Dec 27th, 16, 11:37 AM
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Re: ZDDP Levels - A List for Various Oils

That is a useful list. At first, I was worried that a certain user claiming to be an oil guru got a new screen name. Thanks!
. - Rob

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post #3 of 9 (permalink) Old Dec 27th, 16, 12:07 PM
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Re: ZDDP Levels - A List for Various Oils

Thanks for putting that together. I've been using the Brad Penn oils since I wiped my cam on Mobile1. Seems like I've made a good choice.

In a pinch I'll substitute VR-1. Also looks good when nothing else better is around.

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post #4 of 9 (permalink) Old Dec 27th, 16, 03:34 PM
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Re: ZDDP Levels - A List for Various Oils

Not on the list: Spectro Motor-Guard, 1800 ppm of zinc and phosphorous. Made in CT.

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post #5 of 9 (permalink) Old Dec 27th, 16, 08:01 PM Thread Starter
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Re: ZDDP Levels - A List for Various Oils

Quote:
Originally Posted by Gbauer View Post
Thanks for putting that together. I've been using the Brad Penn oils since I wiped my cam on Mobile1. Seems like I've made a good choice.

In a pinch I'll substitute VR-1. Also looks good when nothing else better is around.
I was surprised to see that there is quite a difference in the ZDDP levels in Mobil 1 10W-30 versus 15W-50. The 15W-50 should be ok for a flat tappet cam. I believe that the heavier weight oils are not subject to the same zinc and phosphorous limits as the lighter weight oils.

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post #6 of 9 (permalink) Old Dec 28th, 16, 08:09 AM
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Re: ZDDP Levels - A List for Various Oils

Quote:
Originally Posted by Sauron67MM View Post
Not on the list: Spectro Motor-Guard, 1800 ppm of zinc and phosphorous. Made in CT.
Is that the same company that made/makes "Golden Spectro" that we all swore by for our dirt bikes years ago? They probably still do, but I've been out of it for 15+ years.

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post #7 of 9 (permalink) Old Dec 28th, 16, 08:30 AM
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Re: ZDDP Levels - A List for Various Oils

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Originally Posted by ctcz28 View Post
I was surprised to see that there is quite a difference in the ZDDP levels in Mobil 1 10W-30 versus 15W-50. The 15W-50 should be ok for a flat tappet cam. I believe that the heavier weight oils are not subject to the same zinc and phosphorous limits as the lighter weight oils.
I didn't know that until it was too late. Now I just shy away from Mobil1 in the Camaro. In my 14 Mustang GT I've found that dino-oil from Ford (Motorcraft) is actually the best for the engine. Doesn't burn a single drop of that but it seems to burn Mobil1 for some reason. The 2011 Hemi Durango gets Mobil1 still. No burn there.

It kind of goes to show that every engine needs a certain type of oil.

Brad Penn has done me well in the Camaro. After my latest tear down the cam shows no wear and everything inside has zero slop. That said there's still a ton of sludge, though, but I attribute that to 46 years of abuse before I got her. Well that and the 6 just seems to build up sludge regardless of what you do.

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post #8 of 9 (permalink) Old Dec 28th, 16, 06:24 PM
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Re: ZDDP Levels - A List for Various Oils

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Originally Posted by HawkX66 View Post
Is that the same company that made/makes "Golden Spectro" that we all swore by for our dirt bikes years ago? They probably still do, but I've been out of it for 15+ years.
Yes. Carlquist Competition here sells and uses both Spectro and Penn. Many are aware of Bill's reputation in the industry. Bill just did an L30 for one of my customers.
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post #9 of 9 (permalink) Old Apr 18th, 17, 08:35 PM
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Re: ZDDP Levels - A List for Various Oils

Personally I have always used the heavier weight oil, and I don't live in a climate as hot as Texas. One thing the engine builder has said to me several times........." all the oils look like water after a dyno pull"

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