First, I can't believe that this is the first time this question has been posed, but my search of the archives came up empty?!Anyway, which of these two products (Sta-bil or Seafoam) is better for storing gas for a long time in a can? And how long is too long?Thanks in advance!

Marine Stabil (blue) not red and a full gas can.

I had used Sta-bil for many years but over time It seemed to gum up things, could no longer keep treated fuel in my power tools (lawn mower, generator). Switched over to Seafoam and no more problems. my power lawn mower sits from late October til March and the Seafoam treated fuel is just fine, still starts on 2nd or 3rd pull after priming. I'm sure each product provides some treatment, just what I don't know.This is my opinion and I'm sure others will have there's.

I always had good luck with Stabil, although I do think the seafoam is a good product. Just as important, is to make sure you get premium, NON ETHANOL gas. Its the ethanol that causes much of the problems. Before they started putting ethanol in gas, it would last years with no help. Now if you leave a lawn mower or other small engine over the winter without stabilizer, you will need to remover the carb and clean it.

Yeah, ethanol. Sigh. I live in Calif, and it is very hard to find non-ethanol gas.And this is for storage in a plastic gas can -- I would never leave gas for a long time in the generator itself. (I used to do that -- it took me many trips to the shop to realize I had to drain the carb after "exercising" the generator.)

Stabil or Seafoam for long term gas can storage?

rexmitchell
Explorer
Dec 10, 2019
Been using Seafoam for years. Great stabilizer but also cleaner.
wopachop
Explorer
Dec 08, 2019
Star Tron for anything gasoline.
Archoil for diesel.

https://www.amazon.com/Star-Tron-Enzyme-Fuel-Treatment/dp/B001VMNHX8
https://www.amazon.com/Archoil-AR6200-16-9-ounces-Treatment/dp/B005WWP99S
Harvey51
Explorer
Dec 08, 2019
So Seafoam for gasoline and Diesel engines is the product best for keeping my grass trimmer carburetor clean. Thank you!
Airdaile
Explorer
Dec 07, 2019
You can also take a gas can down to you local general aviation airport and get some 100LL avgas. This stuff has a 2 year shelf life.

I see you're in SoCal so there aren't many left.
Bobbo
Explorer II
Dec 07, 2019
pianotuna wrote:
suprz wrote:
I have never seen it in gallon cans.. I wish I could get one of those

Try Autozone.

That is where I get mine.
pianotuna
Nomad III
Dec 07, 2019
suprz wrote:
I have never seen it in gallon cans.. I wish I could get one of those

Try Autozone.
suprz
Explorer
Dec 07, 2019
Harvey51 wrote:
Sea Foam appears to be a corporation with many products. Which one should I use to prevent carburetor problems with the snowthrower and riding lawnmower? I always use gas free of ethanol grass Trimmers. I had a Stihl and it needed a new carburetor every spring until I gave it away. Now I’m hoping a Home Depot brand will be better.
Amazon.ca search finds 100,000 Sea Foam products. Locally, in automobile repair shops I see maybe a dozen. Which one to buy?

If using ethanol free gas, I would just run the engine out of fuel and put it away for winter. But if you want to use seafoam, I just eyeball about a shot glass of seafoam per gallon of gas.
suprz
Explorer
Dec 07, 2019
Bobbo wrote:
https://www.amazon.com/Sea-Foam-Extreme-SF-16-Seafoam/dp/B0002JN2EU/ref=sr_1_1?keywords=seafoam&qid=1575689535&sr=8-1

Available at any big box auto parts store. I buy it in gallon cans and refill a couple of the 16 oz cans.

I have never seen it in gallon cans.. I wish I could get one of those
Bobbo
Explorer II
Dec 07, 2019
https://www.amazon.com/Sea-Foam-Extreme-SF-16-Seafoam/dp/B0002JN2EU/ref=sr_1_1?keywords=seafoam&qid=1575689535&sr=8-1

Available at any big box auto parts store. I buy it in gallon cans and refill a couple of the 16 oz cans.
Harvey51
Explorer
Dec 06, 2019
Sea Foam appears to be a corporation with many products. Which one should I use to prevent carburetor problems with the snowthrower and riding lawnmower? I always use gas free of ethanol grass Trimmers. I had a Stihl and it needed a new carburetor every spring until I gave it away. Now I’m hoping a Home Depot brand will be better.
Amazon.ca search finds 100,000 Sea Foam products. Locally, in automobile repair shops I see maybe a dozen. Which one to buy?

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Stabil or Seafoam for long term gas can storage?

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