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Engine sludge: how bad is this for 240k miles, and will any sort of flush really break it up? : r/MechanicAdvice
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What's the best way to clean the inside of this engine? Small bit of sludge was found when changing the gasket. '05 Golf GTI 2.0 fsi : r/MechanicAdvice
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Sea Foam on X: "Ben M in WA's #SeaFoamWorks story: "This 1994 Dodge van has over 200K miles. At around 120K it was having issues idling and would almost stall out on
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