Kentetsu

1/4 tank or more. I've tried it with as little as 1/16th of a tank of gas, but it ran rough and smoked like a Seafoam vacuum treatment. No lasting harm, but my car was not happy about it. lol

As long as there is at least 1/4 tank it will run fine. Stronger, even.

Jkorny169

^^^that sounds about right

roadracer380

Ever try "Mopar combustion chamber cleaner"? It works much better then Seafoam and it is very oil which may be better for a rotory engine. You spray it in the intake manifold while the engine is idling until it stalls, and then let it sit for a 1/2 hour. When you fire it up it will smoke for a 1/2 hour until all the loosened up carbon burns off. Works good! You can pick some up at a Chrysler dealer.
http://mechdb.com/index.php/Mopar_co...hamber_cleaner

mzk4lyfe101

I have used it to great success

J DUBB

iTrader: (1)

i have heard about the mopar clearner as well there are great right ups on ls1 tech about it. i went ahead and sea foam on my stock ss with no probs through the brake booster and pcv line. let it sit 20mins and crank it back up. does a good job of cleaning cylinders, then drive normal untill the remaining smoke clears.

as for rotary's i you tubed a clip of an rx8 getting same treatment seemed to do well in cleaning out the engine. i will try in my jpec t2 swap soon.

Flomracing

I've heard people that have had very good luck, I would probably not recommend it with a rotary for reasons I'm sure you know (lubrication of the apex seals and what not) does anyone know if you can use it on 2-strokes? If it would be ok for 2-strokes, my guess it would probably be ok. Are you just using it for maintenance or is there another reason you want to use it?

littlebit421

If you read the bottle of sea foam you can see the directions of uses. I am running a bottle through my 90 na vert right now, through the gas tank. I want to run a bottle through a vacum so could someone take a pic of the vac. Hose your supposed to run it through, or should I run it through the brake booster hose. And also if you run it through the fuel tank when it goes through,the injectors its being sprayed into the intake manifold befor getting to the combustion chamber right (correct me if im wron) so its cleaning injectors and intake.

nakedbee

Just foamed my 96 base last night, has 147K on the ticker. Sucked 1/3 of it through a vac line and poured the remainder in the oil.

It changed the high spuratic idle down to normal but other than that I can't tell a difference yet.

Badfastbusa

Seafoam i know for a fact works awesome! I have used it in a powerstroke of mine that was running rough due to a clogged up egr and it cleaned it up within a matter of 10min and had it running and idling awesome again! The stuff is the real deal!

my88rx7

My car has a misfire I replaced the coil packs plugs and wires would seefoam help with my misfire. Im wonderin if there is a lot of carbon build up. Or any suggestions would be awesome

geekzus

Hate to knock this addage but the manufactures of the cars would not have a parts dept or a service dept if life was as easy as adding some seafoam..

WS6Fanatic

For those of you wanting to know how to run seafoam through your vacuum lines, please watch the following:

http://www.youtube.com/watch?v=PdIGJbUJdv0

Motormouth759

What's the feeling on using this in a turbo motor?

geekzus

seafoam in the oil is a no no for turbo cars...it will ruin a turbo within one bottle (personal experience may vary) but I have had it loosen up seals that shouldnt have been loosened and fried bearings in other turbos. *customers cars* for all other uses it works great

first thign I do when I buy a used car is look inside the valve cover then seafoam the crap outa it if theres the slightest gunk.. oil change within 100 miles if done in the crank. and some custom gas if I put it in the tank. (1 gallon toulene/1 gallon De-alcohol/5 gallons gas.) Sucking half a can down the intake tract usually solves any stickyness inside the intake.

Motormouth759

So no putting in oil on turbo cars but gas tank and a vaccum line should be ok you feel?

Motormouth759

And what about piston turbo cars such as my daily vr4 galant

Kentetsu

Unless the motor is relatively new, I would strongly advise against putting Seafoam (or any other type of cleaner) in the oil. All you will end up doing is removing buildup from the seals (which is currently assisting with the sealing) and end up leaking or burning oil.

The smoke show caused by sucking it in through a vacuum line is pretty spectacular. If you want to put on a show, then go for it. But that white cloud is the product that you just paid ten bucks for, being shot straight out the exhaust. Nothing but a waste of money in my opinion. And again, if you are going to have a problem using Seafoam, it will happen with this type of application.

Keep it simple, put it in the gas tank and drive the darned car.

geekzus

The main deal is don't run it in the oil if you got a turbo.car..pistons/rotors doesn't matter...I think it even says that on the bottle..haven't read instructions in years...

roadracer380

All OEMs sell a product like Seafoam. Not a waste at all. We at GM recommend using it, as do other manufacturers.

Kentetsu

It is also part of BMW's standard maintenance to add a fuel system cleaner at certain mileage points. Audi does the same as well.

EvoLeoIX

Seafoam is an extreamlly powerful solvent. Sucking this juice through a vaccum line or pouring it in direclty with the oil should be down at your own risk(turbo cars especially) It will clean out the motor, and dry out your system. Rotaries were disigned to burned oil in the combustion chamber.<<<Think reduced lubrication.

If you chose to seafoam anything other than the gas tank, an oil change would be highly reccomended after the "cool smoke" weres off.

Dump it in the gas tank, i see no problem. As soon as it leaves the combustion chamber the solvent has done its purpose and is removed from the system. Hence the oil change if you chose the first two methods i mentioned. The solvent will continue to circulate in the system.

Hope this helps. Don't bash me because my post count is low. Thanks for looking.

roadracer380

Interesting! Do you have data to support your theory?

EvoLeoIX

I've used seafoam on my NA accord and then developed most of the info from using the product of my mitsubishi evolution.(turbocharged 2.0)
The use of this product is widely known and skeptics have posted many a threads on if its safe for thier applications.

My advise is to change your oil a short period after the product is used in the oil or vaccum line.

No oil change necessary if you put it in your tank.
To answer your question, there is no empirical data I have used, just trial and error. Learning from others mistakes.

Thanks for your concerns and I hope this debunks some of the stigma about this product.

EvoLeoIX

I feel kentetsu is correct in his findings. Cheers all.

MachTwo

I just couldn't resist responding.

I would argue that you either don't know what "dubious" means or you have never tried Seafoam... maybe you have never had a reason to try it. I would recommend giving it a try some time.
I have used it and for certain issues is has worked great. Of course it depends on the issue.

As for the question, I would look HERE.

Obviously, our application is not listed but if you look at the answers...you either add it to the fuel or add it to the oil.