When is the best time to add Sea Foam Motor Treatment to oil? [SOLVED]

I read different ideas on how to add Sea Foam to the engine oil. Can you put it in right after your oil is changed and not add any until the next oil change? Or does it work better to add just before an oil change?

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Jim D.
Jim D.
2 years ago

That’s a great question Van. The easy answer is that you can add at the beginning or end of the oil life. We recommend adding 100 to 300 miles before the end of each oil interval because it minimizes the circulation of the liquified heavy oil residue. Sort of like brushing our teeth after we eat works better than before we eat.