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Ron3rd's avatar
Ron3rd
Explorer III
Nov 10, 2018

2016 RAM CTD; Can’t Find Differential Service Interval!

After reading some discussion on servicing the differentials in another thread, I decided to check my manual for the service interval.

In the diesel maintenance section of the Manual, they show the intervals for the Engine Oil, Tansfer Case, Aisin Trans, 68FRE series Trans, Manual Trans etc, but nowhere can I find the service interval for the differential! I even looked in the gasoline section. What am I missing???

I found the section in the manual where they discuss the type of fluid to use, but that’s it.

25 Replies

  • Ron3rd's avatar
    Ron3rd
    Explorer III
    azrving wrote:
    Download the supplement like THIS


    The Supplement is the same as my manual; no mention of the differential service interval.
  • There is an asterisk shown in the box for axle oil. It says when frequent towing, police, taxi, change at 20,000. The first change is the most important because it's dumping the break in trash. NO, you won't see globs of metal on the first change but it's the one that is most likely to produce very fine particles. Depending on how often and how heavy you tow you may choose to extend your interval.
  • Every 30k. I would do the first at 10k. Hardly anybody does the axles but it’s a good idea.