White smoke from tailpipe

[JGeorge264]

We did this on Saturday also... mainly because we were doing the annual cleaning of the egr, idol control valve, and throttle body and noticed that the intake manifold was coated with oil.. ah haaa thats where all my oil has been going. Anyway - to get the seafoam in there we pulled the pcv off and snorted it in through there. He held the hose up to the can, I gave it a little gas to keep it from dying and it sucked it right in. We let it sit about 30 minutes, started it up and it smoked like crazy for about 20 miles or so. Now it's running much smoother, better acceleration, much better power. We also treated the oil, full can of seafoam, ran it about 15 miles then up on the lift and changed the oil. Full can into the gas tank with a fillup too. I'm anxious to see if this helps with my oil consumption. While we were at it we threw in a new fuel filter and pcv.

[Y33TREKker]

I've always heard that it's best to change the oil and filter after running any type of fuel system additive to get rid of the carbon particles that are broken loose (and can end up in the crankcase) during the process. Is an after-use oil change recommended in the directions on a can of Seafoam?

And could the white smoke experienced by some simply be a by-product of the petroleum based chemicals being circulated with the engine oil, and being burnt off in the combustion chamber, after a crankcase treatment? I've smelled Seafoam before and it smells somewhat kerosene based.

[Chopper]

Be nice to avoid running all that stuff thru your cat...not so easily done.