Cummins ISL Oil recommendation
Getting ready for my first service, and I see the shop offers standard oil, semi synthetic, or full synthetic. Terrific :) Any idea what would be the best oil for the ISL that operates as a vacati...
Forum Discussion
Just be certain to use the correct oil. Diesel oils are not all the same. Different spec's for those of us that have particulate filters verses those that have pre DEF coaches. Some oils can cause the particulate filter to stop up sooner.
