Toyota FJ Cruiser Forum banner

Seafoam?

13K views 21 replies 19 participants last post by  Oakville FJ  
#1 ·
anyone run it thru your FJ yet?
 
#2 ·
I have never used it. However my old roommate would use it in his '08 TT. I will say his car would smoke a little when he used it. People claim this is the built up gunk burning. He said that the car was more responsive after it was 'seafoamed'. He never complained about it.
 
#3 ·
I have used it in my see-do's for years - they are 2 stroke and salt water only used for 13 years and still running strong today.. Why on the fJ is the bigger question?? I hibernate my jeep and motorcycles six months a year with just a battery tender and after ten years have never had an issue other than basic stuff.
 
#4 ·
Never used it in the FJ but I have used it as a gas stabilizer when storing our lawnmower, boat motor, and quad. It is amazing how well it works for that. We have left the boat set for 6+ months and it started up easy with the old gas.

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#5 ·
how are you using it?
are you gonna suck it into the cylinder trying to get the carbon out or you just putting it in the gas as a stabilizer?
I put it in the gas if I store my car/bike but I've never try to suck it into the engine to decarb the engine so I dont know.
 
#6 ·
I haven't put any down my FJ, but I have a little Dodge Raider(Mitsubishi) that I poured in every orfice I could find.:mecry: That is some fine stuff. It really cleaned up my motor. It ran smoother, less noise from motor, and seemed to have more pep. I don't have anything bad to say for it. And you will clear out all the mosquitoes around when you pour it down the carb.:rofl:
Jax':wave:
 
#7 ·
A fluid that does not vaporize like fuel being sucked into the intake or vacuum line into cylinders is not a good idea. Get to much in cylinder and you can hydraulic that cylinder and bend/brake a rod, piston rings, crack a piston etc.....all not very good.

As part of the natural by products of combustion carbon is one but most of the dirt in your engine is going to be caused by dirty oil and build up there and dirty air filters. Every engine has PCV system or Positive Crankcase Ventilation which draws crank case gases and by products from combustion (blow by) and recirculates it into the fuel/air mixture and burns it. The more dirty this gas/fumes/particles are the more build up your going to get, just one of the reason to change your oil on regular basis.

Seafoam might be ok as fuel stabilizer but the engine cleaning thing is snake oil.....in fact you could use dextrol mercon trans fluid and accomplish the same thing seafoam does...........create a smoke screen.

If you want something that will decarbon your engine try a water injection kit, they use a mixture of water and alcohol and it sprays in as vapor not solid fluid.
 
#8 ·
I've used this stuff in my high performance vehicles taken through the intake via pcv or brake booster line , to clean the top of the engine.

Lots of people with FI applications and or cammed applications on modern engines that see a lot of oil blowby through the intake via pcv know about the benefits of sea foam.

Sorry for the last poster who thinks seafoam is snake oil. Used as a top engine cleaner, and as directed from the manufacturer in the label, do work, and won't do any harm, even better in high mileage apps. My FJ has only 24k miles. I'll seafoam it when she gets to the 100k miles mark.

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#17 ·
I use it in anything that I have that is used periodically and may sit for a few months between usage. Tractors, mowers, ATVs and dirt bikes. Great for stabilizing fuel and winterizing diesel fuel.

When I had a diesel pick up, I would run it through about every 10K miles, always seemed to run better afterwards.

Good stuff!

Doc
 
#18 ·
I have not run any thru the FJ but my previous truck was a 4.3 GM and they had a lot of issues with carbon buildup in the EGR screen and if I ran a can of SF in the gas tank about every 4 tanks I never had any issues. If I missed a tank or two after a little while
I would get rough idle, minor surging at low RPM until I added another can and then took the truck up to about 55 and then kicked it in and out of passing gear about 10 times and I was good for another 4 tanks. I know it worked in that instance because I tried the same routing without SF or with ATF in the tank and it never cleared up the issue.

I have metered it raw through my RX-7 Twin turbo sitting half way out the garage door and my neighbor came running out of his house with a fire extinguisher thinking I had a major fire going.
 
#20 ·
note that this is a 7 year old thread

" It did in fact clean out carbon.", also water sprayed into the intake of a running engine will clean out carbon, like steam cleaning. The question is whether the FJ engine actually ever needs it.

With modern fuels, and the sophistication of modern engine management systems, it is probably unlikely for much carbon to build up enough to matter to the running of an otherwise healthy engine.

As with most products like it, though, using it ought not to hurt.