SEA FOAM motor treatment in the GAS TANK ???

[ski.dive]

Does adding SEA FOAM motor treatment to the GAS TANK work???

 

[alrock]

What do you want it to do?

 

[Traxx]

Supposedly it cleans things. I don't know, I usually don't bother with mystery products. Truck runs fine, I would rather spend the money on something to bbq

 

[JPaul]

If it's to clean the injectors, it will work a bit, but not as much as you might need. Dame with any other in-tank injector cleaner. To actually get injectors clean you need to take them out and bring them to a shop that has the ability to properly clean and flow test them. Tends to run around $20 an injector.

As for the rest of the claims like cleaning the intake and valves, eh. I've rebuilt several engines over the years and considering how much work it is to clean all that with the engine disassembled and using brushes, scouring pads, very caustic chemicals, and a lot of elbow grease in combination with a hot tank, I find it extremely unlikely that even spraying a can of Sea Foam directly into the intake will barely scratch any buildup you might have.

As for putting it in the oil? That just scares me. It's a solvent so while it will clean deposits, it also thins out your oil and I would only add something like that to the oil immediately before an oil change and only run the engine at idle with it in there.

I know they say it is safe and all, and it quite probably is, but these are my opinions of this and other additives.

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[Chimpy]

Just run top tier gas from a station that sells a lot of it. :thumbs:

 

[adventuredad]

I've used SeaFoam in the gas tank as well as in the oil before. I had an old Honda Element that was having lots of problems so that was a perfect place to try it out. I think it seemed to help but unfortunately for that car it wasn't enough and had to go. Since then I've used it occasionally in my wife's Honda Pilot and haven't had any issues. I can't say whether it really helps or not but I will probably be adding some to the H3 soon. I have a can of the spray for the throttle body as well but never used it, that one seems like a major PITA.

 

[ludevick]

I used it in the gas tank, throttle body and a small amount to the oil a few months ago because i saw it on sale at autozone. And it seems to have smoothed out the idle. The rpm used to move around a bit at idle and it has been a lot less since the sea foam. Other than that i haven’t noticed much.


PS ive heard it’s recommended to get an oil change after around 500 miles.

 

[ski.dive]

What do you want it to do?

I just want it to clean out some of the YEARS of Deposits in the fuel system.
It can't hurt= if I fill-up the gas tank and add a can, it's cheap enough to try it.

 

[rascole]

Pull a plug and use a cheap USB borescope to look at the top of your piston. Run a can slowly through a vacuum line hose like the instructions say. Check again after that and decide for yourself.

 

[4speedfunk]

I use Lucas injector cleaner in the fuel...definitely does something but not a shocking improvement. Also years ago I tried a tiny bottle of stuff called XR7 I think (It looked like an gas station energy shot). It was advertised as a “decarbonizer” and supposed to clean pistons & valves. Whatever it was, it seemed to help it run better.
For oil...I swear by Rislone. It’s a detergent additive, and works great to clean sludge out of the oil on high mileage motors. Your used oil filter will be about twice the normal weight...full of yuck. It saved me a teardown for a stuck lifter tappet on 5.7 Vortec.

 

[3Hummers]

I use Seafoam in my old NA diesels and I think it helps. Don't notice as much difference on my new to newer turbo diesels. Can get about the same result pouring 2/3 quart of ATF in your gas tank.

 

[Mr_Rich]

There was a YouTube video about a guy with a Ford Ranger that demonstrated SeaFoam product quieting the engine after a treatment. It was unscientific but I was sold. There's a big difference with newer engines with roller lifters vs. the flat tappet type which needed the zinc additive in the oil. It's amazing that even with regular maintenance the varnish that can build up on internal engine surfaces. When I swapped out the engine in my Firebird the oil pan on the right was taken off the LS1 w/ 125K and regular 3K-5K oil changes. Due to the time involved I bought a new oil pan on the left to install on the LS6 and I later cleaned the LS1 pan and sold it on EBay. (I wish I would've had a half dozen or more to sell since that item is in demand.)