Cummins ISL valve adjustment interval
Reading my new-to-me Cummins manual and it says a top end service (valve adjustment) should be done on the ISL at 150,000 miles or 48 months. My rig is 6 years old but only has 36K miles. I am havin...
Forum Discussion
ScottG wrote:
Time has nothing to do with it. Wait for the mileage interval.
I agree. What is magic about 48 months if you don't have the mileage.
