Switching to Rotella 5W40 synthetic
09-14-2006, 11:37 AM
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Switching to Rotella 5W40 synthetic I'm gonna give this stuff a try. I couldn't track down any M1 5W40 like I've been using. I've had good luck with Rotella in my previous truck with the Cummins. Never heard any complaints about their products, and it's a good bit cheaper than the M1.
