How to understand Sea Foam and engine smoke [SOLVED]

I just used two of your products on my 2003 Jeep Wrangler 4 cyl.   I used a can of Sea Foam in the fuel and the spray can into the throttle body. When I started the engine back up I got a lot of white and blue smoke for about a minute. It seems to be getting better. Could the Sea Foam treatment cause this?

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Jim D.
Jim D.
3 years ago

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!

Mack pfeiffer
Mack pfeiffer
2 years ago

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 ??

Brian Miller
2 years ago
Reply to  Mack pfeiffer

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!

Last edited 2 years ago by Brian Miller