Re: What oil for Cummins 6.7 is the best? - 06/23/2009:30 AM
I found an interesting article on this topic, and chose the oil by their recommendations. There are actually a few oil, that are advised by different experts. Here you can read the information about top 6 best oil for Cummins 6.7 https://carfluidsexpert.com/best-oil-for-cummins-6-7/ I think it will be useful for you!