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
agesilaus wrote:
I did it on our 2012 F350 4WD including the transfer case and it was easier than I expected. I used the OEM Ford fluid. I also got a pump to pump the old stuff out and the new stuff in. Or did I use a drain plug? It's been awhile, definitively used a pump to add it back tho.
Pump to remove the fluid? Much of what you want to get out will be in the oil that stays in the bottom, because heavy. Draining thru hole, better chance will come out. Drain, add little solvent, (below level of bearings), drain again, better still. Removing pan or cover to wash out is best when practical.
While a pump is easiest way to refill, the cost and storage of a tool you will likely use once every few years. (Book tells you miles. How many years to run miles? Now if you trade trucks at 175% of that miles, you go a long time before use again. How much oil does diff hold?
Now it is hard and messy to pour thru the little hole, with no room for funnel, but a suction gun, that works like a syringe, is cheap, can get the job done, EZ to clean before and after use.
