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

Ron3rd
Right on. I feel at least the first change is critical. If you aren't towing like a snowbird or really putting the sheet to it like I do double towing I wouldn't do it that often. Do the first one and you will see the oil color. Look at the clearness of the new mobile one syn lube and check it down the road at another 30 k or whatever.