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somebody give me a rundown on how this really does benefit us ?? we send them the oil, they give us a diagnoisis of it and they can predict or tell us what engine problems are from it?
dont know if I can really do much since I burn 1qt per 1000 miles .. i do my changes at 2-3000 miles..
my oil is black soon as it goes in .. i did an engine treatment last change but will do another one this time as well.
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