I sell oil as well as fleet service. Archer Oil out of Omaha,Neb. I run 20/50 hi torque in my turbo and 5/30 syn in my race n/a engine. Most diesel oils are for diesel engines with no egr system. The late model diesel motors have this egr sys as a fed requirement. Do more home work. get info from more than 1 salesman. The oil company that I represent has oil analysis. I've asked the folks that have been testing for years. Do your home work before you commit.
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