Seafoam

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jeff_t

Minister of Fire
Hearth Supporter
Sep 14, 2008
4,205
SE MI
My mower with a 17hp BS single cylinder engine has been burning a lot of oil the last couple months. It would use about three pints while mowing a bit less than two acres. I was talking to a friend about it, and he asked me if I used Seafoam. I've used it as a fuel stabilizer before, but didn't know that much about it. "Try it," he said.

So I bought a can and added some to the gas, a couple ounces to the oil, and poured a little in the carb while the engine was running, just like the can said. I shut it off and left it sit for about fifteen minutes and then mowed. When I was done I did the same thing. I added almost all the rest to the crankcase, then started it up and dumped more down the carb until it quit, like fogging oil.

Next time I used it the crankcase was a bit overfilled from the Seafoam I dumped in. Next time it was right at the full mark. Today it was just under full. I'm gonna change the oil and filter before I use it again.

I've never wasted money on magic potions before. This $9 can of liquid wonder cut my oil consumption to almost zero. WTF is this stuff?
 
I have used Seafom for a number of years. I believe it was originally intended for the marine industry, hence it's nautical name. It is a combination of fairly strong solvents in a thin oil, and, to my knowledge is most commonly used by the marine and motorcycle and performance engine crowd as a top oil. It is usually poured through the carb, dissolving varnish and burning out engine carbon. It is volatile and can be used as a engine start aid, in place of more dangerous ether. I use it in place of engine stabilizers, since you can't really add "too much".

The downside is the cost, around $10 a can around here, you can usually get it as a gallon.

They have a pretty useful website, http://www.seafoamsales.com/

Hope this helps.
 
I have been using seafoam in my boat for years. Love the stuff. I have never added any to the crank case, but to the fuel. I worked on a mower for a friend of mine. The engine was rough running, spitting and sputtering. Poured some into the gas while running and it took about 2 minutes of run time and you could hear the change in the engine. That there is some grade A panther spit.
 
Hadn't thought about adding to the crankcase till I read the can. This thing would leave a blue cloud for about three minutes until it got warmed up. It would puff out a big cloud when I got in thick grass and started to lug it. It would puff out a BIG cloud and knock like it was coming apart when I tried to mow the ditchbank. None of that now.
The mower is ten years old and I didn't figure it owed me anything if I had to buy a new engine. Hopefully I can get a couple more years out of it.
 
I run it in fuel and oil of everything I have. Its the only thing that I have tried that really worked for me. I also add it the the chainsaw gas.

Billy
 
Sounds like I should check some of this stuff out. Got some old mowers and trimmers that just plain don't work well anymore. Maybe they just need a transfusion.
 
Cowboy Billy said:
I run it in fuel and oil of everything I have. Its the only thing that I have tried that really worked for me. I also add it the the chainsaw gas.

Billy
Smebody questioned putting it in chainsaw gas on this forum, never got a chance to ask him why, I assumed it was because the oil (some brands anyway) asready have additives in them. Any one have an opinion about this.
 
Woooo seafoam.

Back when I was pimping a chevy corsica as my beater this stuff was virtually a requirement. It's 0 weight oil ("pale oil", BMW, Porsche, VW dealerships carry this), napthaline and a stabilizer. You can, however, overdo it and get AWESOME fireballs out your exhaust system.

We eventually figured out subaru upper intake manifold cleaner is the exact same stuff and half the price.
 
Seafoam burns hotter if I am not mistaken. The old can said not to use it in anything with a cat converter...the newer cans do not. I think they were worried about burning a hole in the cylinder from the heat in a saw. THat being said I run a little in my mix...
 
No magic potion but it sure can clean some things out as well as help as an additional stabilizer. Not exactly sure what it did in your oil...
 
seafoam rules ive found no equal yet and i work part time for advance auto parts for 10 years so ive seen a whole lot of "magic potions" in a bottle.
 
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