HOW TO USE SEA FOAM
MOTOR TREATMENT IN OIL
BENEFITS
DIRECTIONS
treatment recommendations
SUMMARY
Sea Foam Motor Treatment can be used in every type of gasoline or diesel engine. When added to an engine’s oil crankcase, Sea Foam Motor Treatment works to clean and liquefy heavier oil deposits, so the residues will drain away when the oil is changed. Sea Foam cleans internal engine parts, prevents sludge and other harmful oil formations.

HOW TO USE SEA FOAM
mOTOR TREATMENT IN oil
RELATED QUESTIONS
When adding Sea Foam to crankcase oil, is it ok for me to take a while to get to 100-200 miles? I don’t drive my truck much and it might take a month to get there.
Thanks for the question, Tara! No, it does not matter how long it takes to make it those 200 miles. The important part is you get at least 100 miles in so the Sea Foam has time to circulate and clean while the oil is circulating.
Can I put Sea foam in my 2-stroke outboard Yamaha 150hp external oil reservoir to clean the oil system? And if yes, which Sea Foam product would be best?
Can I use Sea Foam in a Mercedes diesel with a DEF system?
How long do you leave Sea Foam in your oil when added?
Good question, John. It’s safe to leave Sea Foam in the oil for as long as you’d like. That said, we recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean. It also lets you drain away all the reliquefied crud (residues and deposits) when you change your oil. Add 1 oz of Sea Foam per quart of oil in the crankcase. Do not exceed this ratio.
How much Sea Foam should I pour in my oil tank? For a Cadillac Deville DHS 4.6l v8?
Thanks for the question, Ian. Add 1 ounce of Sea Foam per quart of oil in the crankcase. (example: for a crankcase with a 7 quart capacity, add 7 ounces of Sea Foam). Do not exceed 1 ounce per quart of oil.
We recommend adding it 100-300 miles before your next oil change. That gives the Sea Foam enough time to circulate and clean, and it allows all the reliquefied oil residues to be drained away with the old oil.
Let me know if you have any questions, happy to help!
Jim D.TECH
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