For those not familiar with used oil analysis, there can be some skepticism about what a 3.5 oz. sample of engine oil can really tell folks about their engine and the shape its in. The truth is: you can learn a lot about the engine such as how it's wearing, if the oil is holding up well, and if there is any harmful contamination. One of our customers happened to send along a narrative detailing her Subaru's UOA (used oil analysis) history and how the data matched up perfectly with the engine issues she was having. Join our host, Joe, as he digs into the car's sample history and how the car's engine oil was in fact telling the tale.