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Will Mobil 1 High Mileage Clean Up a Badly Sludged Motor?
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Will Mobil 1 High Mileage Clean Up a Badly Sludged Motor?
Can Mobil 1 High Mileage clean up a badly sludged motor?
-- Mark Sleep, Holt, MI
Yes, Mobil 1 High Mileage can help to clean up a badly sludged engine but it will require short oil and filter change intervals as the clean-up proceeds. Keep in mind that hard carbonous and lacquer type deposits are more difficult to clean up and usually require mechanical or chemical cleaning. Final results will depend on actual engine care and driving conditions.   
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