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Read the can. Check YouTube ;) The most "common" application is, people put it (1/3 of the can, which is 12 fl. oz. I believe, so that's 4 fl. oz.) in the brake booster vacuum line. another 1/3 in the crankcase (oil), and then the last 1/3 into the fuel tank. You then basically take your car for a drive (to an oil change place.....lol) - being sure to cruise at/around 3-5k RPMs, so that the Sea Foam can "work through" the engine, lifters, etc. But yes, check the seafoam site, etc. they will recommend an oil change shortly after using the sea foam in the crankcase/oil - because it "thins out" your oil/lubrication....and obviously, removes build up, dirt, etc. in your oil - so you don't want to drive more than 75 miles after running Sea Foam through your crank case. The "safest" way - for a novice would be to add it to your fuel tank, 1 oz. per gallon of gas (as per the sea foam site).

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16y ago

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