1973 L82 oil
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Instructor
Joined: Jun 2008
Posts: 233
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From: Marietta Ga
1973 L82 oil
I've been reading quite a bit about oil quality and flat tappet cams.
I have a 1973 L82 with original cam and heads. Do I have a concern related to not enough zinc in "standard" 10W-30 Valvoline or Pennzoil oil?
I thought this issue was with solid lifters, but now I am confused about hydraulic flat tappets...which I think I have.
I have a 1973 L82 with original cam and heads. Do I have a concern related to not enough zinc in "standard" 10W-30 Valvoline or Pennzoil oil?
I thought this issue was with solid lifters, but now I am confused about hydraulic flat tappets...which I think I have.
Last edited by Joebrick; Mar 4, 2012 at 02:01 PM.
Le Mans Master
Joined: Jun 2004
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From: Seattle WA
St. Jude Donor '14
Everything you need to know is at the link below...which likely won't stop this into turning into a 30 page thread with folks repeating it 
http://forums.corvetteforum.com/c3-t...ppet-oils.html
http://forums.corvetteforum.com/c3-t...ppet-oils.html
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
Everything you need to know is at the link below...which likely won't stop this into turning into a 30 page thread with folks repeating it
http://forums.corvetteforum.com/c3-t...ppet-oils.html
http://forums.corvetteforum.com/c3-t...ppet-oils.html
No it won't
Yes it will
(repeat as required)
Safety Car
Joined: Oct 2000
Posts: 3,593
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From: Southern Indiana
Here is what I do and have not had a disaster that I know of.
I run Castrol 10W40 regular blend oil
And a bottle of Comp Cams break in additive.
.
I change my oil 2Xs a year on what ever is in the garage.
I donot run synthetic, but im not saying I won't at sometime, but if I do, I would have no problems with "Royal Purple" or Amsol.
But im a big fan of anything Comp Cams.
I run Castrol 10W40 regular blend oil
And a bottle of Comp Cams break in additive.
.I change my oil 2Xs a year on what ever is in the garage.
I donot run synthetic, but im not saying I won't at sometime, but if I do, I would have no problems with "Royal Purple" or Amsol.
But im a big fan of anything Comp Cams.
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
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From: Millington Illinois
St. Jude Donor '08-'09
Check the first post of the Sticky. Everything you need is there. No need to go through the 508 posts unless you want to educate yourself further on the why behind your choices.
Last edited by 63mako; Mar 4, 2012 at 10:31 PM.
Race Director
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From: Millington Illinois
St. Jude Donor '08-'09
There are 4 posts on this thread that have been rehashed over and over in the sticky that are just flat out wrong. Facts are modern SN/SN oil formulations even when combined with one of the dozens of "miricle" additives are not sufficiant or the correct approach for long term flat tappet cam protection for a variety of reasons. Read the first post in the sticky. It is a consolidation of information from the oil companies, cam companies, experts in many fields and input from hundreds of sources and writeups that has had hundreds of hours of research and effort put into it and is updated regularly as new information is available. Use it. No need to even go their in this thread. 
Race Director
Joined: May 2005
Posts: 10,674
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From: Millington Illinois
St. Jude Donor '08-'09
. Run a "standard" oil for the year your car was built. The list of those oils are in post 1 of the sticky. Pretty simple.