C4 General Discussion General C4 Corvette Discussion not covered in Tech

What engine oil do you use?

Thread Tools
 
Search this Thread
 
Old Nov 16, 2009 | 08:59 PM
  #21  
Vetter86's Avatar
Vetter86
Thread Starter
Intermediate
 
Joined: Nov 2009
Posts: 38
Likes: 0
Default

Originally Posted by azrocketman
Historically, folks indicated that synthetics caused leaks in their vehicles. I do not believe this is true anymore, if ever (I changed my 1966 Corvair to synthetic. Based on legend how could I tell if synthetics caused leaks?). Go ahead and make the switch if you want to run synthetic.

Steve
So, are you saying you've switch to synthetic on a 66 without a recent engine rebuild? (new gaskets) and you have no leaks? I've always heard not to use synthetic on older cars (old gaskets).

Last edited by Vetter86; Nov 16, 2009 at 09:52 PM.
Reply
Old Nov 16, 2009 | 09:24 PM
  #22  
RedVette84's Avatar
RedVette84
Safety Car
 
Joined: Apr 2008
Posts: 4,284
Likes: 1
From: Whitehall Pa.
Default

If the valves and the rings are OK then it should be good for synthetic. I tried syn blend in my S-10 a few years back and it smoked like crazy at start up.
Reply
Old Nov 16, 2009 | 09:51 PM
  #23  
Vetter86's Avatar
Vetter86
Thread Starter
Intermediate
 
Joined: Nov 2009
Posts: 38
Likes: 0
Default

In talking about the poll thing and stickying it, was an idea from a harley forum I go to. Its pretty neat seeing what percentage of people prefer a certain brand or weight (and why). I know some go with what they always used, what their father used, what they can afford or what someone else told them was good.

I'm sure racing plays an important part in choosing a name on the side of the bottle and patriotism (what country its made in). There are "laboratory" tests that say some are better than others (i can't throw the results at you). Mostly from experience a lot of bikers will tell you using amsoil will keep your bike up to 20 degrees cooler (but then we're talking about an air cooled engine).

Maybe some people think they're all the same, and perhaps a lot of oils are, but a lot of people feel nothing but the best for what they drive or ride. If you can extend the life of your engine why not upgrade to a better oil?
Reply
Old Nov 17, 2009 | 09:56 AM
  #24  
azrocketman's Avatar
azrocketman
Racer
 
Joined: Aug 2009
Posts: 289
Likes: 1
From: Tucson Arizona
Default

Originally Posted by Vetter86
So, are you saying you've switch to synthetic on a 66 without a recent engine rebuild? (new gaskets) and you have no leaks? I've always heard not to use synthetic on older cars (old gaskets).
Corvairs are infamous for oil leaks from their pushrod tubes. They used nitrile rubber from the factory and almost all Corvairs would leak after several years of use. Normal maintenance on a Corvair, regardless of the oil being used, is to replace the factory O-rings with Viton O-rings. So, while the O-rings were new, other gaskets and seals, e.g. the rear main and front cover, were original. I have not had oil leaks on the Corvair that I would attribute to the switch to synthetic oil.

The Corvair is a poster child for using synthetic oil because it is air cooled and runs high head and oil temperatures. On the other hand, periodic cooling system maintenance is quite simple.

Steve
Reply




All times are GMT -4. The time now is 04:04 PM.

story-0
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-1
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-2
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-3
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-4
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-5
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-6
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE