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 have a '12 Super Duty with the same rear end with ~260k miles. The rear diff fluid has been changed once to date and is dry as a bone so no leaks. Probably need to do it again.
In your case probably every 100k miles is good if there's no leaks.
In your case probably every 100k miles is good if there's no leaks.
