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
Mile High wrote:
It looks Like Speedco offers Rotella T and Baldwin Filters for $299, so is that Rotella T1 most likely as the standard oil?
Are you having them service your genny also?
