<VV> More lube stuff

Sethracer at aol.com Sethracer at aol.com
Tue Apr 7 00:00:19 EDT 2015


Bob Helt is correct -The mil spec called out for most Corvairs was  
MIL-L-2105B.
 
from a 1963 GM paper:
 
"Rear axle lubricant of the MIL-L-2105B quality level is needed for General 
 Motors cars. Some GM divisions will advise car owners to use MIL-L-2105B  
lubricants in 1963 cars. Such lubricants should be made available at retail  
outlets, and they should be clearly identified."
 
 
Later Mil Specs, such as MIL-L 2105C, MIL-L-2105D and then MIL-L-2105E  
added requirements. Those are met by GL5 
 
>From Lubrizol:
   API Category GL-4 designates the type of service characteristic of  
spiral-bevel and hypoid gears in automotive axles operated under moderate speeds 
 and loads. These oils may be used in selected manual transmission and 
transaxle  applications. API Category GL-5 designates the type of service 
characteristic of gears,  particularly hypoids in automotive axles under 
high-speed and/or low-speed,  high-torque conditions. Lubricants qualified under U.S. 
Military specification  MIL-L-2105D (formerly MIL-L-2015C), MIL-PRF-2105E 
and SAE J2360 satisfy the  requirements of the API GL-5 service designation.
 
-Seth
 
 
In a message dated 4/6/2015 7:07:07 P.M. Pacific Daylight Time,  
virtualvairs at corvair.org writes:

BobHelt--- via VirtualVairs wrote:
> No it wasn't..... just a  mil-Spec for the x-axle. 


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