<VV> Link to Lubrizol

[BobHelt at aol.com]

Hi Kevin,
Sorry, but I am having trouble following your logic here. I can't see how  
Red Line knows what they are talking about (see below). Want to explain?
 
Besides there is more to the subject as follows.
 
1) It is in conflict for Red Line to say that a lube meets GL-4 specs but  
that  lube is not for Hypoids. By definition, GL-4 is allowed to be used  
for both MT trannys AND hypoids. So they are in conflict with the SAE , How 
can  you then accept anything that they say without questioning it?
 
And there is more. 
 
2) If you will go back and review the thread, Redline says their statement  
about not to use it in hypoids is because Chevy (Corvair) way back in 1960  
specified that the gear lube must be rated GL-5. So they continue that 
belief  into today's requirements. THAT IS SHEER NONSENSE!!!!!! GL-5 didn't 
exist until  sometime in the mid 1970s. Also more important, is the FACT that 
Corvair SMs  specified the spec MIL-L-2105B for the gear lube. This spec later 
became GL-4.  So Red Line is wrong about that too. Another good reason to 
question Red Line's  knowledge and their products. Personally, I wouldn't 
touch their stuff after  what they have said.
 
Bob Helt
 
 
In a message dated 4/8/2015 8:21:04 P.M. US Mountain Standard Time,  
virtualvairs at corvair.org writes:

but  since Gl-4 "may" be used in transmissions, and the Gl-4 applications 
that  they are saying are NOT for hypoid gears, but are recommending their 
use in  transmissions- It looks
to me like they really do know the spec.
Kevin  Nash