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re: do you use a fuel stabilizer in your boat gas?
Posted on 10/19/25 at 7:35 pm to cgrand
Posted on 10/19/25 at 7:35 pm to cgrand
quote:might want to rethink. Sea foam is not a stabilizer it is a cleaner and unless the formula has changed it contains alcohol. Stabil would be a better choice for prevention, IMO.
decided to go with 1/2 can seafoam per 8 gals and use ethanol free gas. Thanks all
I’ve seen a can of Seafoam in a gallon of gas do some amazing work cleaning gummed up carbs but I don’t think it’s designed as a stabilizer. I could be wrong tho if it’s changed formula
This post was edited on 10/19/25 at 7:37 pm
1
Posted on 10/19/25 at 7:52 pm to DTRooster
seafoam is still primarily alcohol, and using it as a preservative is counter productive IMO
Posted on 10/19/25 at 8:05 pm to DownshiftAndFloorIt
That’s what I thought also. I don’t even look at it unless somebodies got a problem and I run in a gallon can until it’s gone. I do keep the blue Stabil on hand in case I think I need it
Posted on 10/19/25 at 8:36 pm to cgrand
I use stabil every single time I fill up anything that is not an automotive gasoline tank. Even if it’s lawnmower gas that I know I will use within the week. I have had to replace too many carbs/fuel lines to not take that little precaution.
As a matter of fact, it is time for me to run everything out of fuel that I will not be using again this season. I drain tanks for generators, lawn equipment, etc. and run the carburetor dry on all of that kind of stuff.
As a matter of fact, it is time for me to run everything out of fuel that I will not be using again this season. I drain tanks for generators, lawn equipment, etc. and run the carburetor dry on all of that kind of stuff.
Posted on 10/19/25 at 9:31 pm to cgrand
I put some today. Hope it works
Posted on 10/19/25 at 11:59 pm to Stat M Repairman
Took a sample of the blob for good measure at the time all this happened. Thats off color gas floating on top of the blob. Took the fuel sender out and you could see it floating around in there like a burnt orange jellyfish. Boat at issue had been sitting in a garage for 4-years after the owner got sick.
From what I understand the natural day/night heat and cool cycle draws in humid air through the fuel tank vent. Some of the moisture in the air condenses in the tank and bonds with the ethanol molecules. Once this happens no chemical additive can break this bond. So if you got separated ethanol in the tank it just floats around l it causes a problem, which will be at the worst possible time.
This post was edited on 10/20/25 at 12:00 am
Posted on 10/20/25 at 12:20 am to Crappieman
quote:
Ethanol free and seafoam in my boat tank.
Why?
Seafoam SDS:
There is zero sense in buying non-ethanol gasoline then putting a product that has isopropyl alcohol in to it. Not only are you adding alcohol into gasoline you paid extra to not have alcohol in it, the alcohol you are adding is more hygroscopic than ethanol. Seafoam has some uses as a fuel additive in short term uses to clear up a carburetor or remove carbon build up but it is shite as a fuel stabilizer. Project Farm has a video testing various fuel stabilizers, y'all might want to go look at the Seafoam results and think better.
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