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All, My mechanic accidentally used the non-sythetic variant of Rotella when changing my oil (I blame myself since I didn't specifically call out synthetic or provide the oil myself). My question to the forum, how long can I go before changing the oil? I'll have the UOI from the previous...

Originally Posted By: dnewton3 What raises my eyebrow is that he runs through 1 qrt per 1k miles! I'm guessing the sump capacity is 4+ quarts? That's a LOT of turnover in the sump, to the tune of at least two whole exhanges in 10k miles! That much oil has got to be showing itself somewhere; in...

Any comments/thoughts on the high lead and copper from my Blackstone UOA? I'm thinking turbocharger wear. I add about 1 quart per 1000 miles.