<VV> Quaker State "Defy" Oil

[jvhroberts at aol.com]

 OK, got that. And thanks for the replies. 

But, are we really seeing all that many tappet to cam failures? I remember as a kid, SBCs tore these up periodically then, not so sure it's any worse now. 

 

John Roberts
 

 

-----Original Message-----
From: Bryan Blackwell <bryan at skiblack.com>
To: jvhroberts <jvhroberts at aol.com>
Cc: Virtual Vairs <virtualvairs at corvair.org>
Sent: Wed, Jul 11, 2012 4:19 pm
Subject: Re: <VV> Quaker State "Defy" Oil


None of the modern engines have flat tappets.

I'm with Jay - given the evidence, I want to see the ZDDP levels.  Just saying 
"more" isn't good enough for me.  For an off the shelf oil, Mobil 1 5W-40 Turbo 
Diesel Truck looks pretty good, they had it at WalMart last night in gallon 
jugs.  It meets SM/SL/SJ gasoline specs, the spec sheet is online at 
http://www.mobiloil.com/usa-english/motoroil/files/mobil_1_product_guide.pdf

--Bryan

On Jul 11, 2012, at 3:31 PM, jvhroberts at aol.com wrote:

> Which begs the question, why would modern oils, clearly meant to protect high 
tech engines with FAR higher specific outputs than a Corvair, not be up to the 
task? Heat resistance is about it. 
> 
> 
> 
> John Roberts

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