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re: do you use a fuel stabilizer in your boat gas?
Posted on 10/19/25 at 1:21 pm to Stat M Repairman
Posted on 10/19/25 at 1:21 pm to Stat M Repairman
quote:
shite congeals and floats around like a blob of grease in the tank.
I know that's what water does in a fuel system. That's probably what you were seeing. Ethanol doesn't do that, but it creates varnish in your carb jets and eats away your hoses from the inside out, so even cleaning the carb will immediately get clogged again quickly from additional specks of corroding fuel lines.
Ethanol-Free gas is much more available than it was 15 years ago. It's worth seeking out.
But that won't solve whatever problem someone has with water getting in the fuel. There's a couple ways that happens.
1
Posted on 10/19/25 at 1:41 pm to cgrand
I use Stabil Marine for all my OPE fuel. E0 or E10, still use it.
Posted on 10/19/25 at 3:47 pm to deeprig9
quote:bad gas at the pump is far less common than the ethanol attracting water vapor molecules that condense into water.
But that won't solve whatever problem someone has with water getting in the fuel. There's a couple ways that happens.
I decided to go with 1/2 can seafoam per 8 gals and use ethanol free gas. Thanks all
Posted on 10/19/25 at 4:05 pm to cgrand
quote:
ethanol attracting water vapor molecules that condense into water.
Ethanol, mixed with gas, doesn't cause water vapor to miraculously appear in your gas.
Keeping the gas tank half-full instead of full-full is the main culprit.
Posted on 10/19/25 at 4:10 pm to deeprig9
We live in Louisiana. You're going to get water in your gas. The more air in the tank and the longer it sits, the worse it will be.
Posted on 10/19/25 at 4:19 pm to DownshiftAndFloorIt
quote:
We live in Louisiana. You're going to get water in your gas. The more air in the tank and the longer it sits, the worse it will be.
That's not just a Louisiana thing. That's universal, unless you live in the desert. And even then, it's still a thing, but takes longer.
Posted on 10/19/25 at 4:28 pm to deeprig9
I guess you didn’t pay attention in chemistry class
quote:
Ethanol contains a polar hydroxyl group (-OH) that can form hydrogen bonds with water molecules, allowing it to dissolve in water
Posted on 10/19/25 at 4:46 pm to cgrand
So ethanol can dissolve in water, how does water dissolve into ethanol?
Posted on 10/19/25 at 4:50 pm to deeprig9
water doesn’t dissolve in ethanol it just builds up in the tank. What are you talking about
Posted on 10/19/25 at 4:56 pm to cgrand
quote:
water doesn’t dissolve in ethanol it just builds up in the tank. What are you talking about
I'm wondering what you are talking about.
Posted on 10/19/25 at 4:59 pm to deeprig9
ethanol is hydrophilic it bonds with water molecules in the air that might otherwise remain in a gaseous state
Posted on 10/19/25 at 5:29 pm to cgrand
5
Water & Phase Separation in Gasoline-Ethanol Blends (E10 ...
Gasoline phase separation is the separation of gasoline into layers, primarily caused by water contaminating ethanol-blended gasoline. Because ethanol is "hygroscopic," it attracts and absorbs water from the air. When enough water is present, the ethanol-water mixture separates from the gasoline, settling at the bottom of the tank as a distinct layer that can cause engine damage.
I turn over 100 + gallons per week but still check my separators periodically.
Also buy gas at a station that turns over thousands of gallons per day.
Water & Phase Separation in Gasoline-Ethanol Blends (E10 ...
Gasoline phase separation is the separation of gasoline into layers, primarily caused by water contaminating ethanol-blended gasoline. Because ethanol is "hygroscopic," it attracts and absorbs water from the air. When enough water is present, the ethanol-water mixture separates from the gasoline, settling at the bottom of the tank as a distinct layer that can cause engine damage.
I turn over 100 + gallons per week but still check my separators periodically.
Also buy gas at a station that turns over thousands of gallons per day.
This post was edited on 10/19/25 at 5:32 pm
Posted on 10/19/25 at 5:44 pm to KemoSabe65
My point is that eliminating ethanol doesn't entirely eliminate the water problem, or at all.
My first post on this thread, I said frick ethanol, don't use it, and listed some reasons. But for some reason I feel like I'm being treated like an Iowa Corn Lobbyist.
Even with additives and no-eth gas, water still gets in there, without good practices.
My first post on this thread, I said frick ethanol, don't use it, and listed some reasons. But for some reason I feel like I'm being treated like an Iowa Corn Lobbyist.
Even with additives and no-eth gas, water still gets in there, without good practices.
Posted on 10/19/25 at 6:13 pm to cgrand
Usually use that instead of always use that is a mistake. I don’t use stabilizer because I typically go thru at least 1 tank per month but if I didn’t I would. I do add quickclean or ring free to a tank every couple months just because
Posted on 10/19/25 at 6:17 pm to deeprig9
quote:except no one said that, but you
My point is that eliminating ethanol doesn't entirely eliminate the water problem, or at all.
Posted on 10/19/25 at 6:26 pm to cgrand
I extrapolated from M Stat Repairman's comment. He said it before me. But you hate me so we can't have a reasonable conversation so I'm done with this thread. Have fun with your snake oil additives.
Posted on 10/19/25 at 6:30 pm to cgrand
Well,,,,, I use only non ethanol, my boat sleeps in my shop and I haven’t found a measurable amount of water in my separator or had fuel issues in the 15 years I’ve had this boat. But I run my boat a lot so take that how you will
Posted on 10/19/25 at 6:34 pm to Out da box
Run it so it’s gets in carb or injectors for winter… keeps it from gumming up
Posted on 10/19/25 at 6:56 pm to deeprig9
quote:
But you hate me so we can't have a reasonable conversation so I'm done with this thread
simmer down brah its not that important
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