You two are both right...

True sea foam is a safe way to clean carbon build up and Ford and GM use a similar chemical to clean engine internals.

But...
If you know there is internal damage or a blown head gasket which you should be able to tell before you try sea foam your motor will overheat and will seize.

Same concept goes with my nitrous it burns up carbon build up because it heats my motor up if I have a blown head gasket then my motor also goes to crap.

True! So true, no respectible tech or car guy should or would try using seafoam on a motor that needs rebuilding or head gasket or any other problem like that... It just doesn't make sense, and for the comment greg made about techs being idiots! This may be true in some places, but i live in the Southeast and im surrounded by drag strips, dirt tracks and other race venues where these same "idiots" work in shops all week to pay the bills, then hit the tracks on Sunday to let off some steam. My buddy at the local Ford dealership has a small side business building 4x4 trucks and roll cages for off roaders/drag cars, my friend here at my Saturn dealership works on the side for a local car club that races their Redline ION's and has installed every single mod they have done, short of dyno tuning them all of the work has been done here! Now yes the Redline ION's are extreme dork cars but were talking high boost 250-300 hp 4cyl dork cars, and they run like they should. :nomore:

Sorry to original poster for this getting carried away, and it is a great tutorial on how to use Seafoam. I will continue to use it, not as a bandaid on a broken car, but as preventative maintance on my Stang. And ill stay out of this flame war further.

After reading all this, I want to try out the seafoam. But I'm kind of iffy about throwing it in the vaccuum line so i'm going to try 1/2 in the gas tank and 1/2 in the oil. We'll see what kind of results i get from that.
But i was wondering how long after putting it in the oil do i need to change my oil. Just changed it out a couple of weeks ago and don't know if i can drive around for 2000 more miles with seafoam in there or if i need to change it sooner after putting in the seafoam?
For the gas, sounds like i should put it in when car's nearly empty and then fill it up with gas. Just like adding a fuel injector cleaner, right?

Do not drive on it for 2000 miles especially if your putting it in the oil. See it works as a detergent and oil already has a certain amount in it to keep it clean putting too much in there and then runng hard on top of that for 2000 miles would be murder to your motor. As far as putting it in through the vaccum line it's not that bad as long as you feed it in gradually you'll clean the intake of the carbon build up in there which might I add isnt a bad thing.

Theres no point in putting a injector cleaner and sea foam in the gas tank they both do the same thing.

What I would do for you is 3/4 can in the vaccum line and the rest in the gas tank that way you dont need the injector cleaner. Then change your oil and everything will be ok.

Yep thats always been my method. And has worked fine for years on many cars. I personally wouldn't choose to add it to the oil. That just seems like a bit of a risk, I don't believe anything that thins oil and acts like an extra detergent is a wise choice. But just make sure if you do you change it soon like icefreezen said.

You might have issues if you put too much into your intake. Other then that, seafoam ROCKS

Used it yesterday.
 

I actually didn't have much smoke honestly. I used half a bottle of the stuff through the Vac line and half in the gas. It makes me kinda happy, because that indicates very little carbon buildup, just like my oil analysis from amsoil said. :Woot:

Now, it did help with some smoother idle and acceleration.

So, all in all im pretty happy with the results, im sure once I run through the fuel I will notice some more small improvements.

BTW: It was about $5.88 here in TN. :boink:

I was very happy with my results, my car didn't smoke very much, and i even put all down the intake, but it smoke for a long time, just not very much, But my car sounds, and runs nicer now. I think it sounds nicer because some of the smoke helped clean my cats, like the bottle said it would a little.. but i was happy with SEA FOAM

The seafoam tutorial....
pour crap into car, mess up car, wonder why you were such a dumbass to actually read this post and do what it tells you to do.

Lmgdao @ the noobies...

Hey noob, I got a news flash for you, I'm 53 years old and have probably been working on cars longer than you've been alive, There was life before the internet, you half wit.

And I still would'nt put that crap in my car!!

Wow, an old n00b.. Sweet! :silvercup:

Did someone say boobs

C'mon bro, it's all in fun! I just wouldn't put that stuff in my car, that's all.
Back many years ago I read an article in Hot Rod magazine, must of been around 1979, that said the stuff was worthless.
As for the boobs, I don't know what you mean by that, or the other A-Hole meant by that, but I am a professional bodybuilder, retired, and the only boobs I've got are my pecs, that still are good enough to bench press 405 on a good day.
Where's the love my fellow Stangers, you know that if we ever ran into each other in real life it would be all good!

that stuff must do something, because every spring we go through cases of it at my store. Most of the guys buying it are using it for outboard boat motors i noticed.

of course it does something, it separates you from some of your money!!