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Change Is Good: Blue Diamond Oil Long-Term Test, Part I

Change Is Good: Blue Diamond Oil Long-Term Test, Part I

This 2018 Duramax is in it for the long haul, and so is its oil! Using it as a test bed, we'll analyze Hot Shot's Secret Blue Diamond PAO oil every 5,000 miles to see how it's doing.This 2018 Duramax is in it for the long haul, and so is its oil! Using it as a test bed, we'll analyze Hot Shot's Secret Blue Diamond PAO oil every 5,000 miles to see how it's doing.
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