Is it necessary to remove old gasoline from the gas tank? I've got about 8 gallons of 7 month old ethanol blended gasoline left over from last summer in the gas tank. The gas was treated with that Stabil Marine formula stabilizer which claims to keep the gas fresh for up to a year. I've heard horror (and expensive) stories about the damage ethanol gas/water can do to an outboard motor. I'd really hate to be out on the water and break down because there is water in the motor. I did change the fuel/water seperating filter this winter. Does anyone have any advice? Also, is it best to use the Mercury fuel treatment products or can I just stick with Stabil for a Mercury engine? Thanks for the help

I would discard it. If you are not keeping your tank full the blended gas will allow for condensation. I would not keep it over two months. Yes, you can run the Stabil(I do) and have no problems. change the filters regularly.

Siphon it out and burn it in an old lawnmower after checking it for water.

Better yet, siphon it and pour it into your car/truck gas tank.  Make sure the tank is at least half full.  Your vehicle will never know the difference.

I don't use Stabil anymore.

Seafoam works much better and also has the advantage of being a decarbonizer at the same time.

the gas you're tossing was probably bought for $5 a gal.

better to play it safe and give the gas to somone else. ;D

repairs will be much more than $40

I would like to get rid of mine as well....but how do you get rid of it?   I wont want to use it in anything....

call your town hall and ask them how

every town should a hazardous waste day

Does anyone have any good tips on how to siphon out the gas, in a safe manner?  I haven't tried yet, but I'm not sure if its going to be easy fitting a hose down the tank, I think there is a nice bend from the remote fill to the actual tank.  I've got a 18 foot Triton.  Anyone got ideas or past experience with this? Thanks for the help

I had about 7 gallons of old gas. I gave it to a lawn service crew that was working in our neighborhood. It was still usable for weedeaters,etc. The guy was very happy because the price of fuel was really cutting into his margin.

Does anyone have any good tips on how to siphon out the gas, in a safe manner? I haven't tried yet, but I'm not sure if its going to be easy fitting a hose down the tank, I think there is a nice bend from the remote fill to the actual tank. I've got a 18 foot Triton. Anyone got ideas or past experience with this? Thanks for the help

Buy a gas siphon hose. Trust me, you dont want to be burping gas fumes.

Dont run it in your 4 stroke lawnmower. It will run wide *** open no matter how you adjust the throttle. Only run it in a 2 stroke, like a weedeater or chainsaw.

I run at least 1/2 ounce of SeaFoam (and once ounce every third tank)in every gallon of gas that goes through my motor and I still don't leave gas in my tank. Since I lost my fishing partner seven months ago, I've only been to the lake a couple of times and know I won't get back there very often so as soon as I park my boat, I disconnect the fuel line from the input side of the primer bulb, hook an electric fuel pump to it and pump the tank out. Even when I was using my boat regularly, on rare occassions if the boat sat for more than six weeks, I pumped it out, I absolutely will not run aged gas. I've been building outboard motors a long time and know what it can do.

Is it necessary to remove old gasoline from the gas tank? I've got about 8 gallons of 7 month old ethanol blended gasoline left over from last summer in the gas tank. The gas was treated with that Stabil Marine formula stabilizer which claims to keep the gas fresh for up to a year. I've heard horror (and expensive) stories about the damage ethanol gas/water can do to an outboard motor. I'd really hate to be out on the water and break down because there is water in the motor. I did change the fuel/water seperating filter this winter. Does anyone have any advice? Also, is it best to use the Mercury fuel treatment products or can I just stick with Stabil for a Mercury engine? Thanks for the help

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Last July I spent $600   :'(to have my fuel pump and carburator rebuilt and gas tank drained due to water and rust in the fuel. I drain any gas more than 8 weeks old now . I also use Star Brite or Stabil Marine every fillup. By the way, I was using regular Stabil when I had to have the work done :-?.     Happy fishing.

~B.A.S.S.~N.A.F.c.~boatU.S.~

How old is too old . . . 4 weeks, 6 weeks, 8 weeks, three months?  And if a tank is almost full and treated does the same time period apply?

Mine set up 9 weeks last year treated with Stabil when I had my surgery and a full tank and I had no problems. I think if the tank is full you have no worry about the condensation. Someone correct me if I am giving out wrong info. Just had no problem with mine.

You are better off with a full tank of treated fuel than a partial tank. Mine was about 1/4 full when I had my problem, always fill up your boat's tank on your way home from your boating trip . Also, if you can, seal your boats vent while it"s parked to prevent moisture from the air condensing in the tank while stored. Just remember to remove the seal before operating the boat.     Happy fishing.

~B.A.S.S.~N.A.F.C.~BoatU.S.~