Quote:
Originally Posted by bobcowan
3. I do periodic UOA's and I learned ......
semi- synthetic Mobile1 will not last 5,000 miles in my Harley. But Valvoline Blue dino oil lasts a long time in my Cummins TD.
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Agreed that the evidence of UOAs is the most significant.
You're using the term (..the
oil) "lasts" a long time. But is it not possible that the Harley puts fuel contamination in the
oil and the diesel does not? That would be true of any brand or type of oil you use-
synthetic or not. Did the UOA say something like that for you to use the term "lasts"?