It was Blackstone Joe's turn to analyze a couple of oil filters in the lab, and sure enough he uncovered signs of excess wear that, along with results from an oil analysis, helped inform the owner of potential problems. It wasn't all bad news, though. Listen as Blackstone Joe unpacks particulate other than metal that doesn't necessarily call for alarm. If you're unfamiliar with filter analysis or want to know how we go about the process, this episode is for you!