Why I add 12% (one gallon) of gear lube at every oil change...
01-20-2018, (Subject: Why I add 12% (one gallon) of gear lube at every oil change... ) 
Post: #25
RE: Why I add 12% (one gallon) of gear lube at every oil change...
(01-19-2018 )Skman Wrote:  I bought a pail of BOSS GL-5 80/90 gear lube today at NAPA. But when I got home....I noticed it has Limited Slip Additive added to it.
Not sure if I should return this and look for something else before doing my oil change.
Also, I have a de-mandated 2013 ISX so I wasnt sure if it mattered if I grabbed GL-5 or if I should keep searching for GL-4? Seems hard to find in Canada...

You could always send in a sample to a lab and see what additives it has.


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 Thanks given by: hhow55


Messages In This Thread
RE: Why I add 12% (one gallon) of gear lube at every oil change... - Rawze - 01-20-2018



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