- Joined
- Apr 18, 2011
- Posts
- 6,622
- Reaction score
- 2,955
- Location
- Minot, ND
- Ram Year
- 2014 Ram 2500 Crew
- Engine
- 6.7L Cummins
Anything but 5W20 will prevent the MDS from working.
According to the dealer you can use 0w-20 with no issue as well. I have not tried it yet but will next oil change and let you all know. If it gives me issues I will just turn MDS off haha.