Team Camaro Tech - Reply to Topic
Team Camaro Tech join team camaro
 
Camaro Parts at SS396.com     
GROUND UP & SS396.com         
Official Sponsor of Team Camaro
   

Auto Insurance



Registered users (free) do not see these large ads

Engine General Engine Discussion.

Thread: Another Oil Comparison Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
Jan 27th, 13 02:58 PM
DT
Re: Another Oil Comparison

Quote:
Originally Posted by 71454Chevelle View Post
15w40 Brad Penn oil with a Wix filter. This is with an 8 qt. system.

http://www.penngrade1.com/
How do you like the 15W40?? Noisy at cold start-up?? It was suggested I use a 15W40 with my BBC roller set-up.
Jan 27th, 13 01:47 PM
71454Chevelle
Re: Another Oil Comparison

15w40 Brad Penn oil with a Wix filter. This is with an 8 qt. system.

http://www.penngrade1.com/
Jan 26th, 13 04:45 PM
bigblockragtop
Re: Another Oil Comparison

Quote:
Originally Posted by DT View Post
Mike, if you are content on using a 20W50 I would look into Mobil 1 15W50. Just a thought.
Thanks the engine only has about 5k miles if that. It get one oil change a year. I have the 8 quarts of the vr1 20-50. Next year I am going to change it with the 15-50. I like mobil 1. I figure if trucking companies can extend their warranties by a few hundred thousand mile by going synthetic then there must be something to it.
Jan 26th, 13 12:33 PM
Matt 69
Re: Another Oil Comparison

Castrol has just come out with a new synthetic that is specifically designed for use on classic cars. It is called Castrol Edge with Syntec and it is 5w 50 weight. I have been running it in my car for a few months now and have no negatives to report other than the $9.00 per quart price tag.
Jan 26th, 13 07:40 AM
DT
Re: Another Oil Comparison

Mike, if you are content on using a 20W50 I would look into Mobil 1 15W50. Just a thought.
Jan 25th, 13 07:38 PM
bigblockragtop
Re: Another Oil Comparison

I think another factor that can be thrown into the picture is that today's fuel injection is so perfect that it does not wash any gas down the cylinders. I think that would thin the oil out too. I am truly a novice but fuel injected cars do not pollute the oil as much.When guys like Steve Morris start using 5/20 in their procharged big blocks I will follow.
Jan 25th, 13 03:43 PM
DT
Re: Another Oil Comparison

I'm still torn between using a 10W30 or 10W40 for my BBC roller motor. I keep changing my mind, LOL.
Jan 23rd, 13 08:53 AM
bigblockragtop
Re: Another Oil Comparison

The forum I checked out was yellowbullet. There is a section specifically for supercharged engines. I searched oil viscosity and like I said anyone with a big block chevy(supercharged) used at least a 15-45 but most used 20-50. These guys have a lot more money and experience than I do. It must have to do with the superchargers needing thicker oil in the engine, tolerances? Who knows. My Jeep with the dod hemi uses 5-20. 60k miles so far so good
Jan 23rd, 13 07:02 AM
DT
Re: Another Oil Comparison

Excellent post Dennis. I agree. I'm also aware that there are just too many variables here that can add to someones decisions on what oil to use. Interesting, none the less.
Jan 22nd, 13 08:26 PM
DjD
Re: Another Oil Comparison

Quote:
Originally Posted by DT View Post
Mike, I'm no expert by any means, but it seems that 20W50 is NOT a good choice. The damage occurs at start-up and the 20W50 is just to thick cold. I would look into a 10W30 or 10W40. Even the 10W40 is NOT recommended from what I read. I happen to use Summit racings 10W40. I'm going to switch to the VR1 Valvoline 10W30 (silver bottle) conventional oil though when I run out of the Summit oil.

This is one of those topics that "the more you read, the less you know". LOL
Don't get too caught up in the "bob the oil guy" publishing's... The average engine lives a very long life and has since the days of straight viscosity oil. Yes startup is a stressful part of an engines life but yet engines live 100,000 plus miles, some well into the 200,000 mile range over 20, 30 maybe even 40 years! My point is if you use a 5 viscosity oil because it's less harmful during startup just how many more miles will your engine live?

Before I go on, please understand I am not casting doubt on the technical information Bob the oil guy shares. What I have to say only questions the perceptions folks come away with after reading Bob's information! It's a lot like the air cleaner comparisons, my K&N doesn't trap as small a dust particle as someone's paper filter but it doesn't mean my engine will die 20k miles or 10 miles sooner for it!

Same argument about warm operating temps and oil, 30 viscosity rated oil may be more optimal at 200 degs because it thins to a certain property that coats and protects better than a 50 viscosity oil but then start asking just how much will the 30 viscosity oil extend the life of the engine?

Something else that hasn't been taken into consideration is how the engine was assembled or how worn it is. I touched on this in one of my earlier posts, large clearances by design or by mileage wear along with ambient temps will dictate what oil viscosity is most optimal. I just can't believe one viscosity is good for all. If it were the oil company's wouldn't make the vast ranges they do. Most new car handbooks will even have a "cold climate" recommendation that differs from what is printed on the 710 cap and there is no way I can tie that to advertising hype or a way to pull a couple dollars from the consumer.

Even the results of this survey support you can take the average sbc and subject it to a barrage of different oil viscosity and we won't be able to state a percentage of the life taken away from the engine for using the wrong viscosity of oil. Again nothing wrong with being presented the facts, it's how the facts are spun up after being presented that you have to be careful about.

I've seen the cold oil pressure differences switching from a 5w30 to a 10w30 in a '96 LT1, the oil pressure went up drastically until the engine warmed up. It was actually a bit scary to be honest about it. I've also seen oil consumption go down after switching a 5w30 to a 10w or 15w40 in an iron block old school sbc. Funny thing the old school mill didn't see as much of an oil pressure change as the LT1 did...

Just food for thought!
Jan 22nd, 13 06:18 PM
DT
Re: Another Oil Comparison

Quote:
Originally Posted by bigblockragtop View Post
Yea you are sure right about that. I just looked on a forum where all the guys are running superchargers, prochargers etc and NONE of them use the lower viscosity. Maybe they know something I don't? I run Mobil one in all my other cars.
Yes, I run Mobile 1 High Mileage in my lil pickup
Jan 22nd, 13 06:12 PM
bigblockragtop
Re: Another Oil Comparison

Yea you are sure right about that. I just looked on a forum where all the guys are running superchargers, prochargers etc and NONE of them use the lower viscosity. Maybe they know something I don't? I run Mobil one in all my other cars.
Jan 22nd, 13 05:37 PM
DT
Re: Another Oil Comparison

Quote:
Originally Posted by bigblockragtop View Post
Well did a ton of reading after reading this. I guess with the procharger a lot of guys use the vr1 20/50 like I am using, maybe the high horsepower? IDK
Mike, I'm no expert by any means, but it seems that 20W50 is NOT a good choice. The damage occurs at start-up and the 20W50 is just to thick cold. I would look into a 10W30 or 10W40. Even the 10W40 is NOT recommended from what I read. I happen to use Summit racings 10W40. I'm going to switch to the VR1 Valvoline 10W30 (silver bottle) conventional oil though when I run out of the Summit oil.

This is one of those topics that "the more you read, the less you know". LOL
Jan 22nd, 13 05:25 PM
bigblockragtop
Re: Another Oil Comparison

Well did a ton of reading after reading this. I guess with the procharger a lot of guys use the vr1 20/50 like I am using, maybe the high horsepower? IDK
Jan 22nd, 13 05:07 PM
drmeff
Re: Another Oil Comparison

Very interesting read on the Chevelle forum. I am going to give some mobile 1 5w-30 a shot this spring. When I bought my 68 the previous owner ran 20w-50 and I switched to 10w-40 and the pressure dropped at idle from 40 to about 10. I thought I had a problem which is why I started reading this in the first place... looks like that is actually a good sign. My cruise PSI hasn't changed at all, and it peaks at 60-70 at WOT.

Very good read, just made a lot of sense!
This thread has more than 15 replies. Click here to review the whole thread.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -7. The time now is 04:06 PM.



Camaros.net - 2009 AutoForums.com