For your chance to win the 2022 BMW M5 CS and support a great charity click here! In this video, I show you how to properly clean pistons and the engine deck using a wax string. This is a real trick that can literally save your engine from the destruction improperly cleaning can cause. As a bonus, I have how to clean a cylinder head in this video too but couldn't fit it in the title. Enjoy! Sonic Tools Father's Day sale with up to 30% off!
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