Forum Discussion

toban's avatar
toban
Explorer
Sep 19, 2015

How often do you change your differential oil?

I changed mine about 18,000 miles ago ( 4 years) to a semi synthetic 75-90 from a 85-140 because I live in colder climates. What frequency do you change your oil? The truck garage I go to says the ...
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mpierce's avatar
mpierce
Explorer
Sep 19, 2015
BobGed wrote:
According to Freightliner the synthetic gear lube SHOULD be changed every three years. I don't know what the other manufacturer's requirements are.


Of course, most trucks are putting on close to 400,000 miles in those 3 years too.

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