What’s out there for true synthetic engine oil
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#25
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From: East Tennesseee
I run the Mobil Delvac 1300 for $11/gallon at Wally world. It's semi synthetic. Holds up exceptionally well in over the road turbo diesels. My 2000 F350 uses less of it than it did on Amsoil. Does just as well for a summer of marine use in my 454. Doesn't even change color. Probably because it never gets near as hot as in a turbo application.
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