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Switched from HPLs 0W-20D after less than stellar wear metal totals. Amsoil 5W-30 Diesel Oil showed a very good reduction in wear metals. Not sure what caused the fuel dilution increase, only thing I can think of is that I use OptiLube XPD every fill up, so I'm going to stop using it as much...

Not really sure how to feel on this one. Wear metals very high, but the comments remark that it could be a conflict with my previous oil used, which was Amsoil 100% synthetic diesel oil. Going to do a double flush and move up to 5W-30 and stick with Amsoil