Another seafoam question.. yes. i already did a search :)

[m3j0n]

I saw that they started carrying seafoam products at autozone (it used to be a NAPA exclusive part apparently). After reading positive results on the forums, i decided to use it in my 180k mile 95 m3. I purchased both types that they had, the spray version (called deep creep) and the standard can version.

yesterday, along with a friend that has already done it on his previous trans am, we decided to use the deep creep since that is what he has experience with. We followed the directions and warmed up the car to operating temp. Disconnected the brake booster line and sprayed the seep creep via the red nozzle into the manifold. I was under the impression that we were supposed to do it until the car would stall, but it actually increased the RPMs a bit and ran smoother while spraying the seafoam. We used nearly 33% of the can. The engine never stalled but produced a good amount of white smoke. It wasnt the excessive clouds of white smoke that everyone speaks of, however. I shut the car down and let it sit for about 15 minutes and started it up. It started up fine and ran just as it did before with some white smoke which eventually went away. I didnt see any noticeable results (i should see something with 180k miles, right?).

today, i decided that i would do it again, since i figured i didnt use enough of it. Again, i followed the same procedure and used the remaining 2/3rds of the can and just like before, the engine increased revs and ran smoother while spraying. I decided to let it run without the brake booster line connected in hopes that it would stall out. It ran a bit rough for a couple of minutes, but never stalled out. I reconnected the brake booster line and turned off the motor. I waited about 15 minutes and started the car up. Again, i got a moderate amount of smoke and a CEL. I cleared the CEL and drove the car. Just like yesterday, no noticeable results.

What, if anything, am i doing wrong? Should i consider the deep creep to be a waste of time and just use the original formula in the can? i dont really feel confortable dumping it in the oil filter like it states... It just doesnt sound like a good idea. i considered putting it directly in the fuel tank, but apparently it doesnt reach a lot of areas through that route. Any suggestions for me? (FROM THOSE WITH FIRSTHAND EXPERIENCE OF THE PRODUCT)

thanks,
jon

[cstang68]

I thought deep creep was for breaking bolts loose, kinda like pb blaster?

[iateyourcheese]

... I was under the impression that we were supposed to do it until the car would stall, but it actually increased the RPMs a bit and ran smoother while spraying the seafoam. ...

When you take the brake booster hose off, you introduce a vacuum leak and the car runs too lean so it sputters. Adding the liquid stuff reduces how much air gets through the hose and your engine should return to a normal idle -- at least until the liquid clears the hose. That part is completely normal.

I added the can (not spray) stuff through the brake booster as well. I let it sit and then started it up, good amount of smoke. But in the end it didn't really change anything.

[M3zie]

So it sounds like this stuff is a crock? Seems as long as you drive your car hard every once in a while, the combustion chambers will remain relatively clear.

[bimmer_boyis]

You should use a line with a press in fitting to push into booster line. Then put a T fitting on that line. Leave one part open and run a line off the other. Put a valve above that. Then a line going to the can. This is the way this should be done. Let it drip at a steady drip, but don't let it stream. Should take an hour or so to do right. Then you'll have plenty of smoke. I do this before I replace plugs.

[328iJunkie]

ive never used the 'deep creep'. I just sucked the seafoam liquid little by little into the brake booster line and i get a hugee smoke show and the car runs noticably better. I do this every 3 oil changes..

[Mad Dog 20/20]

People GREATLY exagerate the affects of Seafoam. Unless the motor is some old tractor motor that's all gummed-up, the product is not going to create a difference one can feel.

But, I think you guys are doing it wrong. By letting the motor run, the Seafoam is being burnt and expelled out of the exhaust (the white smoke).
The idea is to get the seafoam into the chambers and let it sit and seep for a while. Then when you start the car and drive it, the loosened carbon is ejected (when used on my 170k mile isuzu Trooper, I see moist black solids and soot being shot out of the tail pipe along w/ white smoke).

So, if the car does not stall, turn off the motor after half the seafoam bottle is emptied.

EDIT:
I would NOT use this stuff on an M3 w/ a cat - might plug it up.

[m3j0n]

;) im catless.... if its being burnt off by the motor before it gets a chance to work, should i spray it in the manifold with the motor off? that sounds kinda dangerous.

[Mad Dog 20/20]

The stuff is REAL popular in the isuzu trooper crowd (the motors have issues with oil consumption). Trooper guys remove the plugs, jack the truck up on one side so one bank of the cylinders is near vertical (its a v6), and pour the stuff directly into the chambers and let it sit overnight - then repeat with the other bank of cylinders. I have not tried this.

I'd use the liquid version. The aerosol likely just gets sucked right out of the exhaust port as it enters the chamber.

As long as the chamber does not have appreciable amount of liquid (liquid does not compress and can bend shit) sitting in it, there should not be a problem. If you let it sit long enough, most of the stuff should seep past the rings and/or evaporate.
An oil change is needed afterward.

[sideshow]

by putting it into the combustion chamber you're hoping to get rid of carbon build up right? If you want to see results, pop out the spark plugs, get a nice flashlight and check out the condition of the combustion chamber before and after. I've done it a few times now and my combustion chamber still looks like ass, but what I did notice when I pulled off the intake manifold was that the intake ports were super clean towards the bottom side, and I mean like polished metal clean while the tops were kinda grimey. The valves themselves were very clean too although I don't know if that was the seafoam or not. I've been thinking of doing what mad dog mentioned where you tilt the engine so that the piston tops are parallel to the ground so that the stuff covers the pistons completely. I can barely see metal when I look into the combustion chamber.

FYI I've been using the liquid stuff.

JOEY