How To Use Sea Foam: Three Ways To A Cleaner Fuel System
Aug 11, 2020·When added to the oil, Sea Foam will clean up sludge, quiet noisy lifters, and remove oil varnish. One can treats 16 quarts of oil so you get 2 treatments in one can for most vehicles. The best method is to add the treatment 500-1,000 miles before the next oil change, and then add the rest after you have changed the oil.