Seafoam sucks!!!!!!!!!

I don't think your suposed to use it as an additive. I belive your suposed to put it in the oil, run it for a little bit (at idle, slightly elevated) and then change the oil afterwards. If you want to run a detergent additive, run Marvel Mystery Oil. I know plenty of experienced auto techs as well as myself have good experience with that stuff.

Just because Seafoam smokes a lot doesn't mean it is really doing anything. It just smokes because it the seafoam that is smoking. Smoke means incomplete combustion, which means residue.

I work for a GM dealership. As we all know, these LS1 based engines run high compression on 87 octane, which they do great until there is some carbon buildup in the combustion chamber and then they knock, sounds like a deisel when you punch the gas, then timing retardes and it just runs with no power. We start by running BG Intake Cleaner through the TB and through the intake to get the induction clean. Then we run the BG Fuel Injector Cleaner. We put an additive in the gas tank called BG 44K, then we pull the spark plugs, pour in GM Topend Engine Cleaner, put the sparkplugs back, next day we pull the plugs, spin the motor over, put the plugs back, let it sit for a little bit more, then fire it up, pure black carbon comes out, not just smoke. It works as well.

Another technique is to get the motor real hot, then get the RPM to at least 2-3K rpm and then pour water in the intake. Cold water hits the hot carbon and breaks it off.

90mustangGT said:

Another technique is to get the motor real hot, then get the RPM to at least 2-3K rpm and then pour water in the intake. Cold water hits the hot carbon and breaks it off.

Click to expand...

Yeah that works well, but you shouldn't just dump water in there you should mist it, right? Motors with carbon buildup still run better than hydro-locked motors.

I also follow the same suit as SMOKEDYA... Regular manintenance and oil changes with good oil and running good fuel is all I do to keep my car running well. I don't use any of that weird **** like seafoam.. I've never heard a ford tech say "Hey, try this product made by some company to clean up carbon buildup you probably don't even have!"

Jason, are there concerns with the top end cleaners and catalytic converters?

HISSIN50 said:

Jason, are there concerns with the top end cleaners and catalytic converters?

Click to expand...

Well, it makes them technically run very rich, because you now have two fuel systems dumping in fuel. If the cats are on their way out, well, that might burry the hatchet. When using the top end cleaner, the engine is cold, and the converters are basically "off" because they need heat to start thier catalyst process. By the time they get hot enough, the cleaners are out. When running the injector cleaner directly through the injectors by turning off the fuel pump, it is not a concern, when running the induction cleaner, the O2's read rich so they lean it out quite a bit, and it doesn't run enough extra "fuel" long enough to really cause damage. Basically, in my experience, I have not had any problems with cleaning induction/fuel systems and having issues with catalyst converters.

Of course, spraying water in, a hydro-lock motor isn't a good thing. Another thing water down the intake will do is steam clean the converters and O2 sensors.

Thanks Jason. I was actually wondering about bits of carbon getting stuck in the substrate inside the cat (clogging the cat up).