Chaning Differental oil ???
Have an 03 F350, 90K miles, how often should the diff. oil be changed ? Ford lists the oil that came with is as synthetic. We do about 1/3 towing and the rest around town. Thanks
Forum Discussion
i used to be anal on this. at every scheduled change the fluid smelled burnt. that changed with my 2001 duramax. it was my first one using synthetic. that used fluid came out smelling and looking the same as the new i was replacing it with'
