Can I add Sea Foam to my oil crankcase to clean sludge? [SOLVED]

Can Sea Foam go into my oil crankcase to clean sludge?

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Jim D.
Jim D.
11 months ago

Yes, you can add Sea Foam to your oil crankcase. It works to clean away (or prevent) harmful oil residue whether sticky varnish or heavier sludge. Add 1 oz of Sea Foam Motor Treatment (or better yet, Sea Foam High Mileage) to your oil crankcase about 100-300 miles before your next oil change. Add it to every oil interval and it will progressively clean away residues. Hope that helps!