I read that if you treat the engine with Seafoam via the brake booster line, you should change the oil the same day because the Seafoam might eventually harm the main bearings.Wouldn't the Seafoam burn out more carbon if you drive a few weeks before changing the oil?

 

I dont think you want to be driving it far with that stuff in there, you will break down the oil when adding that so I assume it can't be good.

 

I poured 1/3 of the can in the crankcase and ran it for about 300kms in my truck, very drastic results, oil came out very black when it usually is a dark amber. No problems to speak of and I have put 20000kms since, I wouldn't do it again though.

 

What is Seafoam and what does it do?

 

ever do the same with marvel mystery oil?

 

I stay away from dumping anything else than motor oil. Too many things to worry about in a newer vehicle like expensive O2 sensors and such. I would have tried it in my old 300 I6 engine though, you just could'nt kill those motors.

 

http://www.seafoamsales.com/motorTuneUpTechGas.htm

 

I'd do whatever it says on the bottle, I can't remember what it says. Running it through the brake booster line simply cleans the TB and the combustion chamber, you should get little to none in your oil.

 

i do know one thing, after feeding it through the brake booster line, it smoked like hell for a while!