Forum Discussion
Cummins12V98
Sep 28, 2017Explorer III
I rarely check as my 15 Cummins uses very little. I did add 1 qt after 10K on my last 15k oil change. This time I have added no oil and am within 1K of my 15K oil change at 44K on the clock.
About Travel Trailer Group
44,052 PostsLatest Activity: Oct 29, 2025