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
Yes, do it now along with transfer case and front diff. I have an '06 and change mine about every 5 years. But I live at the foot of the Rockies and tow a bunch in them. Towing is hard on gear boxes.
