[Chrysler300] gear lube

["'John Grady' jkg@xxxxxxxxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

Found out some interesting ,-- could be important ---stuff.

 

In Auto Restorer; GL-5 gear lube has sulphur and other additives that attack brass, so not for use on manual transmissions or rear axles with brass / bronze parts ; GL-4 OK ; I know 300F has brass thrust bearings in Axle center (Timken style rear wheel bearings) , many cars of our vintage had brass transmission syncros , brass bushings in diff, etc . I have been using synthetic 75W Mobil 1, not sure now if GL-5 or 4; GL-5 made for all 100% steel bearings, like ball bearings etc typical of new cars , EP additives help those, are  in GL-5

 

Heads up!

 

John Grady, PE

 

 

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Posted by: "John Grady" <jkg@xxxxxxxxxxxxxxxxx>

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