Mile_HighExplorerJan 06, 2017Cummins ISL Oil recommendationGetting 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...Show More
Mile_HighExplorerJan 12, 2017So using a Rotella T6 that meets CJ-6 could reduce some of my DEF consumption because the filter won't plug as often?
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