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Old 09-19-2019, 08:48 AM   #1
ReefRanger
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Default Seafoam Fuel Additive

Does anyone have any experience with Seafoam?
He good, the bad the ugly?
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Old 10-15-2019, 06:46 PM   #2
dubs chops
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I have never heard of it causing any harm. I use it from time to time. I saw a video on youtube once of a can running directly off of it and the before and after seemed legit.
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Old 10-17-2019, 01:44 AM   #3
Brimm51
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I sprayed a can in my intake and a can in my gas tank when i bought my '12 STi, it must have cleaned up alot of carbon in there from how much it was smoking. not sure how much it helped performance wise but it was peace of mind.
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Old 11-11-2019, 03:03 PM   #4
Dave05RS
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Default worked for me

I have used Seafoam when bringing cars that had set for a long time back in to service - Found it get them running much smoother while working the old gas through the system and on my way to put new gas into the tank. Not sure I'd use it as PM given the 99 cent bottles deal well enough with a bit of H2O condensing in the tank and are cheap enough to add every 3 or 4 months.....
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Old 11-13-2019, 11:54 AM   #5
IHaveAHorse
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@Brimm51 that's not how it works, it makes any car smoke, you're basically burning oil directly in the cylinders. It literally says on the can and in any video you watch that it will smoke heavily and that's why you're supposed to drive kind of hard for a short time after using the intake spray.
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Old 11-20-2019, 04:16 AM   #6
futureboy40
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ive always put some in brake booster line and some in gas tank. sometimes oil right before change out.
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Old 01-07-2020, 06:32 PM   #7
Ben_Drinking_Coffee
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Surprised no one asked: What are you trying to accomplish by using Seafoam?
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Old 01-08-2020, 03:45 AM   #8
parker
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I've heard rumors heavily concentrated seafoam can, over time, eat at old worn out seals.

Precaution may be to make sure not to over concentrate it if storing for more than a month or two. I'm pretty sure they have an amount recommended for storage.
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Old 01-08-2020, 04:10 AM   #9
brylemr
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I know some guys used it to clean gummy fuel systems and carbs.
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Old 01-08-2020, 05:04 PM   #10
Jedi03
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i have used it for all aspects of fuel/oil/intake...works great at getting carbon/oil buildup off everything...tried it as hand cleaner...gets grease/oil off but leaves its own residue...soaked my cylinders to see how it performed vs lacquer thinner on the other side...just needed to be wiped off compared to lacquer side just coming off...I use it ~every 4 months, put about half the can vacuumed into the intake (lately BOV line as its in the center opposed to brake booster like I do on every other car) and half either in the oil or the fuel depending on how close to oil change I am...when first getting my STI went from 1qt oil use per 1k miles to nearly no consumption...best I saw was a 90 civic hatch smoking, struggling to run, getting somewhere between 10-15mpg we were going to part it out...had can of seafoam on hand and buddy had never used it so we sucked the whole can through the brake booster, let it sit as instructed, started up and of course was smoking, idle cleared up fast, smoking stopped shortly after, appeared to stop using fuel (me and 4 other guys used it as a commuter for the whole week, put ALOT of miles on it lol) and he ended up selling the car and making some good money on it!
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Old 01-09-2020, 11:26 AM   #11
Oderus
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I have used it as an intake cleaner previously and never had any issues. I can't say it was a game changer either with night and day difference in performance after use.
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Old 01-19-2020, 01:57 PM   #12
bdc64
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Seafoam works great I sell tons of it, mostly to your average joe or vehicles showing signs of problems. You can use it in any application, in the fuel is most known and used but also using it in your oil and vacuum line. Vacuum line is by far the most aggressive, they have videos on it and that is where you would get the stories of massive smoke clouds.

Seafoam is a great product and was invented by the U.S Army for when the tanks stormed onto the beaches it was used originally for smoke bombs!
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Old 01-20-2020, 02:19 PM   #13
Garandman
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https://seafoamsales.com/about-us/

Our snow thrower was starting hard and surging badly. Couple applications of SeaFoam in tank and it started first pull and idled perfectly.

We had a 97 Outback with a well-known hesitation problem. Applied via vacuum line. Smoked an extraordinary amount but almost eliminated the problem.

That said, we now mostly use it in small, carbed engines. We use Techron on fuel injected engines.
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Old 01-25-2020, 04:21 AM   #14
IWrxAlot
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Ive used it in 2 of my vehicles. A 96 civic and a 96 Acura. The civic had 210,000 miles and the Acura had a 264,000 miles. Id be lying if I told you it did something. I used the vacuum line from my brake booster to suck it up. BUT be careful doing this method, if you let it suck up to much at once theres a chance you can hydro lock your engine.

In my opinion, if your using it to get the carbon off your pistons/valves your wasting your time and money and possibly risking damaging your engine. I think people see all the smoke and think WOW look at all that carbon burning off! But in reality its just the sea foam vaporizing. Back in the day people actually used to spray small amounts of water into their intake to get some of the carbon off their piston/valves.

But if your using it as a fuel system cleaner (putting it in your gas tank) then your more likely to see results. But even then, it probably wont do much. Just my opinion based on my experience with it...
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Old 01-26-2020, 02:30 PM   #15
cloudizzle
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good for breaking the carbon down in chambers
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Old 01-31-2020, 02:57 PM   #16
stryfe132
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very, interesting, i put a can in my gas tank just for the hell of it a couple weeks ago, that being said didnt really see a difference, but also didnt have a problem in the first place
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Old 02-02-2020, 12:40 PM   #17
Scorpius
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Techron Fuel System Cleaner.
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Old 02-02-2020, 01:23 PM   #18
turboblew
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Quote:
Originally Posted by cloudizzle View Post
good for breaking the carbon down in chambers
combustion chambers??? hahaha... not only no but HELL no. Doesnt do squat except empty your wallet.

Putting it in a crankcase?? You realize there is a petroleum distillate called "kerosene" that does a great job of desolving whatever may be accumulated in oil pickups or valleys or what not.

Drop a clogged fuel jet in some seafoam... see what happens (spoiler alert NOTHING)

There are good chemicals out there... seafoam is not one of them.
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Old 02-02-2020, 01:26 PM   #19
turboblew
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Quote:
Originally Posted by Scorpius View Post
Techron Fuel System Cleaner.
a poster with legit recos... :thumbup:
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Old 02-02-2020, 05:50 PM   #20
Scorpius
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Quote:
Originally Posted by turboblew View Post
a poster with legit recos... :thumbup:
What's recos? I didn't make my post link to Amazon by the way.
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Old 02-03-2020, 09:23 AM   #21
absubie
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Quote:
Originally Posted by IWrxAlot View Post
Back in the day people actually used to spray small amounts of water into their intake to get some of the carbon off their piston/valves.
I have wondered about the effectiveness of this method, especially for the FA engine. It's basically the same as water injection, just on a very short term basis. Watched a few videos and was intrigued. Not heard of anyone trying this on a WRX, aside from actual WMI kits.
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Old 02-09-2020, 10:35 AM   #22
krystalized_fozzie
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+1 for seafoam.

Not sure what you're trying to accomplish with it, but I run it once a season to clean out carbon and my fuel system.

You'll notice white smoke from exhaust while running it, completely normal. I freaked out the first time until I read the bottle haha. Jokes on me
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Old 02-09-2020, 11:09 AM   #23
turboblew
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Quote:
Originally Posted by Scorpius View Post
What's recos? I didn't make my post link to Amazon by the way.
the techron chemical recommendation.
Anyone that reco's seafoam as a perscriptive method is clueless.(or stands to gain monetary compensation)
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Old 02-09-2020, 11:11 AM   #24
turboblew
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Quote:
Originally Posted by krystalized_fozzie View Post
+1 for seafoam.
Not sure what you're trying to accomplish with it, but I run it once a season to clean out carbon and my fuel system.
You'll notice white smoke from exhaust while running it, completely normal. I freaked out the first time until I read the bottle haha. Jokes on me
thats your benchmark the chemical working??? might as well add 2 stroke oil to your fuel system... at least you'll get fragrant scents from it.
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Old 02-10-2020, 06:18 PM   #25
Scorpius
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Quote:
Originally Posted by turboblew View Post
the techron chemical recommendation.
Anyone that reco's seafoam as a perscriptive method is clueless.(or stands to gain monetary compensation)
From the little bit of research about Techron that I read about online it's "supposedly" one of the few that "actually" does anything. I know it fixed the fuel gas gauge sender unit on my parents ford escape.
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