When to change oil after adding Sea Foam [SOLVED] Asked by Gee J. In California I added Sea Foam to my oil crankcase after I changed the oil. How long until I should change my oil and oil filter again?
Thanks for the question!
Keep an eye on the color of the oil. If it gets dark, go ahead and change the oil and replace the filter. Otherwise, it’s fine to leave in there.
You can add Sea Foam at any point during the oil interval, but we usually recommend about 100-300 miles before an oil change. Just keep an eye on your oil color and you’re good to go!