I Got A Can Of Seafoam, It Says It Can Clean Out The Engine By Putting Into The Oil, How Should I Use It? The Whole Can In The Oil Or What?

 

You put about 1/3 can in the oil, 1/3 in the gas, and pour 1/3 down the intake with the car running (slowly, to keep it from stalling).

However, you need to change the oil within 1000 miles if you put it in there. Seafoam cleans, but also attacks and degrades the oil, so you don't want it in there for a full oil-change interval.

I haven't used Seafoam on my vette yet, but have had terrific results on other cars

 

Pour about 1/2 can into the oil. Start up the engine. pull the Vacuum hose to the brake booster. The engine will want to race to about 2000 RPM.. don't worry.. Next slowly pour about 1/2 of a can into the vacuum hose. as you near the last few oz of the can.. pour it in a little faster to the point the engine wants to stall and then dump the rest of the can in and stop the engine quickly.

Pickup a can of the spray Seafoam... and open the Throttle blade of the Throttle Body and spray down the Throttle body and into the Runners and the rest of the inside of the take.

Replace the vacuum hose on the brake booster. Let it set for 10-15 min's and then start it up.. Many take a few cranks or need to floor the throttle (As it may act as flooded). Once it start it will smoke a lot (and I mean a lot), but not to worry again.. rasie the RPM up some to the engine smooths out and once the smoke stop, may take a few min. (many have stated that they drive the can around a bit.. smoking.. and leaving a trail of smoke..LOL..

Some have suggested changing the spark plugs.. other do not. I didn't with the four cars that I have done and very happy with the results of Seafoaming them..!

Next Pour another can into the Gas tank (as suggested for the amount of gas that is in the tank) and drive as normal for a 100-200 miles and change the oil and filter.

Good luck and enjoy the smoke show.. ! (You might want to warn the neighboors.. LOL)

 

I've used it several times before myself. I wouldnt advise putting it in the oil, thats your call. However, it works amazingly well when you suck it up through the PCV tube into the upper part of the engine. It also does pretty good in the gas tank, but make sure you mix it up with a full tank of gas. Straight seafoam is bad for the injectors.

 

I wouldn't use it. I have heard that it plays havoc with Corvette fuel injectors.

 

If you have a 89-91 with stock Multec injectors any cleaner except those specified by GM will kill your injectors in short order. I used injector cleaner on my 89 and my injectors were destoyed in 2 days.I believe there is a service bulletin on this.Other years with other injectors are not a problem, only the Multec injectors . WW

 

I Googled ( seafoam LT1) and found lots of good info from other forums. The earlier post on this thread giving directions was correct. After spraying the TB and intake (while car is off) and its been 20 minutes since you since you used the brake vac line to get into the intake then start her up and keep it at a smooth idle for 15 minutes then take her for a drive and get on her hard. Might be tough to keep idle going just give little throttle taps to keep her afloat. If you use in oil then change oil no longer then 200 miles preferribly 100 miles. Dont poor into oil tube when engine is hot! They say this stuff will not harm your engine. Its like water to our skin. Im going to give this a shot when the weather brakes.

 

It killed my multec injectors. I shot it directly into the plenum via the brake booster line. Use it in moderation, there have been seminars at corvette shows talking the bad effects on some injectors.

 

Why in God's name would anyone throw an untested(at least by the FDA)product into an engine.The arguments about Dino versus synthetic and all the associated problems should speak volumes about this.Synthetics are highly detergent and will clean out older engines and exacerbate any latent leak problems.That's all seafoam does and most of the time you end up with problems you never knew existed.As mentioned with older engines it will strip your injectors of their protective coating and God knows what it does to bearings and rings.
Like most additives it's a con job.While your at it throw in some water wetter,rad seal,ring sealant for older engines,duralube,prolong,lucas engine tune up,and every other piece of crap on the shelf.
If you think your engine is coked up run it at a fast idle and spray a few pints of water through it.End of problem and any residue boils off.
Now here come the Pro seafoamers

 

It has worked exceptionally well in my '83 Gold Wing. And as a stabilizer in the fuel tanks of bothe the Wing and the '92 Vette. But I use it sparingly and not in the engine as I believe the Syn. oil takes care of it.
Bernie

 

There will always be Pro's and Con's for every product along with a few technical reasons why it should not be used for a specific reason.

Then again there are specific cases of it doing a great job and other cases of it destroying a complete good engine.

Also I can say that I have had 100% success in using it on 4 different car/trucks.
my 99 LS1 (in the Chevelle), 88 TPI, 87 Fiero V6, 89 GMC w/350. All show a improvement with improved idle, acceleration, over all performance and gas mileage. These are my opinions and case. All of them had prior bad mileage, ruff idle to some degree. They all had some degree of carbon build up and did show improvement on the intake having less carbon build up after.

I am not saying it will work for everyone nor in all cases.. but it did for me. It many not show much improvement with a well maintained car/engine.. but for some high mileage one that are not preforming well.. you many as well give it a shot !

Just research on technical reason not to.. as in the multech injectors.. but I can bet there are cases that some have used it successfully.

 

i ain't puttin' that ch!t in my engine, no f'ing way.

 

I've been using this "chit" for over 10 yrs.......with GREAT success! One thing I can tell is when someone puts it down, especially when they qualify their statement with utter nonsense or passing on misinformation....they haven't 1. either tried the product or 2. couldn't follow the directions on the can!

 

That can be said for any product or equipment for that matter..

I will get them the statment that using it on the Multech injectors may have a problem with this product. I have not read the GM notice on it, but does it specifically stated "Seafoam" as a cause ? I will research on my own and read what I can on the specific subject. Anyone have any links ?

 

I've used it for going on five years in my Vette. 1/2 can in the vacuum hose brake booster and 1/2 can in the gas with great results. I use it twice a year.

 

Ok.. after some quick research, I have not found any write up of results that Seafoam has cause this specifically.

Here is one link (see below) that I found regarding the AC/Declo services bulletin. It states that the older Multech I injectors are a wet-coil type injector and is subjective to failure if GM Top end cleaner or other Fuel additives are used. From other findings that I have read.. the coating on the wet coil are not designed to withstand the newer additives and/along wtih the normal wear of the coils heat cycle will also wear the coating down and cause more resistance and failures.

So with anyone with the Multech I injectors.. failure is normal thing that will happen and that GM Top End cleaner or any other fuel additives will accelerate the wearing of the coating of the coils. (no specific reference to Sea Foam or any other additives other than GM Top End cleaner.

I also found no negative write up outside of the Multech I users.

http://www.acdelcotechconnect.com/pd...sb_05D-105.pdf

As with anything.. you are really on your own if you use any product or proceedure. So, make your own opinon on its usage. I guess I am lucky that I have not had any engines with the Multech.. and will not use any product as additives on any car/truck that I find them on.

 

I just emailed Seafoam's customer service mail box.. this is what I received back.
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A Chemical cleaner could possibly affect a wet coil application because of Chemical affect on plastics, etc.

Sea Foam has been proven SAFE, because it is 100% petroleum (oil), is NOT A CHEMICAL, and has no affect on plastics, epoxies, rubber, nylon, composites, etc.

Yes, Use Sea Foam whenever you want SAFE and effective, without secondary damage!
------------------------------------------------------------------

Your call again..! just giving you some info...

 

I don't think putting injector cleaner through the plenum or through the booster line can damage the injectors, only putting it in the tank were it goes through the injectors...WW

 

Yes.. agree with WW7, by putting it in the oil, it is suppose to assist in loosing and cleaning the carbon and other build up in the crank case and oil system. Even if you pour in into the Plenum, it would only come into contact with the outside of the injector as it passes by it.
It should never touch the Injectors wet-coils, which is where the Service Bulletin is stating that additives can cause problems...

If someone is having problems with there injectors because they put something in the crank case oil.. it most likely something else that caused there problem. To cause a problem internally with the injectors, the additive would have to come into the injector via the fuel system.

 

Seafoam was originally made for outboard motors, because of the mixing of oil and gas there was a buildup of carbon on the pistons and rings. When I would get to the end of bass fishing season I would put seafoam in a spray bottle and spray it into the carburators on my motor and shut it down letting it sit for about 15 minites , then restarting the motor. This would desolve most of the funk on the pistons and rings and blow it out the exhaust. Its use has expanded now to cars and other vehicles but I don't think I would put it into my car crankcase knowing how well it dissolves gunk, it may do to good of a job .. WW