Posted by Glen on Saturday, December 21, 2002 at 11:21AM :
In Reply to: what weight of gear oil do you put in the axles of ffpw posted by dave in washington on Saturday, December 21, 2002 at 2:45AM :
Straight 90w is the original spec gear lube for temps above -10F and 80w for below -10F. In most applications 85-140w will be a good choice, it doesn't give you the sub-zero ability that 80w-90 does. 85w-140 doesn't seep past gaskets or seals as much as 80w-90 when hot and does give better ring/pinion gear life.
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