Picture this: the engine you own is facing either certain contamination or the possibility thereof, and you're now faced with deciding how to proceed with the maintenance plan. You might be wondering whether you should use an additive, if recent work might have impacted the results, or how you can go about looking for symptoms of a problem on your end. In this episode, Blackstone Joe is here to break down the do's and don'ts when it comes to addressing coolant, fuel, or excess dirt in the engine oil.