How to understand Sea Foam and engine smoke [SOLVED]

Thanks for the description Mike. Yes, the white smoke is the vaporization of the Sea Foam Spray being pushed out the exhaust. Sea Foam Spray and Sea Foam are made from petroleum cleaning and lubricating oils. When using Sea Foam Spray, it does not burn in the chamber with the gasoline, so it is emitted out the tailpipe as a white vaporized oil. The blue smoke might be old engine oil that could have been cleaned from the compression rings. Once you run the engine after the hot soak, the vapor should clear away within a few minutes of driving. Hope this helps!

I used Sea Foam Spray in my intake while it was held at 2000 RPM. I sprayed about half the bottle and let it soak for 15 mins and drove it around. The car smokes a white/blueish tint only on startup. As soon as it is in drive it stops smoking and my oil levels and dipstick are the same as they were before. Could this still be Sea Foam burning carbon deposits a week later ??

Hi Mack. No, the Sea Foam treatment would be long gone. Note that a white/blue plume of smoke seen at start up is usually a tiny amount of motor oil that will leak from valve guides into chambers. It’s normal for engines over 100,000 miles. You’d never lose enough oil to notice on a dipstick. Hope this helps!