Re: Oil change int.
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I ran Rotella 15w40 for the last 7 winters here in Colorado and never had a problem whether or not I plugged in the block heater. We have sub-zero temps in the winter. I have recently switched to Rotella 5w40 because I like to waste money (SmokeyWren) [img]/ubbthreads/images/graemlins/smile.gif[/img] . All kidding aside on wasting money, the 5w40 seems to agree with my truck. I like it, so it is not a waste. I send my oil off to Blackstone but change it at 5k. My oil reports come back great.
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Im opposite of you I use 5w30 year round year after year and my sample says "oil is suitable for continued use" 4 years later and 40,000 miles on the same oil, going on 43,000 now [img]/ubbthreads/images/graemlins/smokin.gif[/img]
I dont like wasting money I trust my UOA [img]/ubbthreads/images/graemlins/biggrin.gif[/img]
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