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Old 05-11-2010, 12:36 AM   #8
Kurt in NJ
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Join Date: May 2010
Location: on the Littlefield
Posts: 6,140
Default Re: Differential oil used

I did my own research, looking on the Mobile site, found 600W, saw that it's uses are for steam cyls, and worm gear drives, then I found the 600 series of gear oils, they are listed for spur, and bevel gears, bI bouight a bucket of 636, it looks, feels and smells just like what I found in old untouched trans, and rears, and I have taken apart many bad engines that were full of STP, but I have never found it in good engines.

An old time used car guy told me his "secret" mix ---banana peels and sawdust!!
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