Oil samples from engines that are fresh out of the factory, or from recently rebuilt engines, often contain a lot of wear metal and silicon. But why is that? And why do certain parts seem to produce more metal during the wear-in process than others? These were the questions a customer asked us, and in this episode, Blackstone Joe seeks to provide some answers.

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Have a question or shoutout? Leave a message for Blackstone Joe at 614-407-6169.

Host: Joe Adams

Producer: Arryn Dennard