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Fuel question

Old 05-24-2020, 06:11 AM
  #1  
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Hey guys,

Curious. As I prepare to go out for the first time on this boat......again.. heh. (aft bilge pump went out.. replacing it later today)....

The only thing I cannot test is the fuel. When I bought this boat, March of last year, it had almost 200 gallons of ethanol free fuel onboard. The man I bought it from had no way to burn it off, so.. it has had that fuel for a little over a year. I hate to waste 200 gallons of gas, but.. what are the chances it is bad?

I have extra fuel pumps and will grab a couple water separators.. but, not sure if I have much of a choice but run them down.

Ideas?

R
Old 05-24-2020, 06:21 AM
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The gas is probably fine. That’s a lot of gas. How big is the tank? If there is a lot of humidity and a lot of air space, you could have a lot of water. If its doesn’t have ethanol in it, that just means your filters will load up faster so you should be good. If it were me, I’d use that gas in my gas automobiles, but with this virus, it would take 3 months at least to use 200 gallons of gas.
Old 05-24-2020, 06:35 AM
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I have a 150 gallon and a 50 gallon tank. I have not opened them and the boat has been in my driveway since I bought it. I started the engines a few times and other than needing the new impellers, they ran fine but that was not in gear so...heh.

I bought fuel additives just in case. I know it does not “repair gas”, but maybe it can help keep it from messing up the engines. If I can run them down most the way, then have someone clean the rest out and fully clean the tanks so I can start over with fresh fuel...heh. For now, I figure all I can do is hope. 200 gallons would be way too much. The fact they are almost full may also lend to less water, but gas still breaks down. The good part is, ethanol free, so may get lucky.

Thanks


R
Old 05-24-2020, 07:06 AM
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What does your nose say? Smell it. If it has seriously degraded it will have an off odor that smells more like varnish than gasoline. Ethanol fuel often develops a sour smell.

Your always taking a chance with fuel that old but because its no-e, I'm going to say you have a pretty high liklihood the fuel will be fine.

I've run stabilized no-E that was that was over 2 years old (in a generator) and no-E in a boat that was over a year old. Not something I'm keen on doing but both were without any issue. I routinely run 6 to 8 month old, stabilized, no-E fuel in 2 boats (winter layover) without issues. I usually add some fresh to the old at the beginning of season though.

6 or so years ago, before I was completely converted over to no- E, I routinely had issues with ethanol fuel stored for the winter layover. Seperation, Injectors screens corroding or clogging, fuel lines degrading or collapsing, filters getting water logged, etc.

How does it run on the hose, idling? If it doesnt run like a sewing machine on the hose, I wouldnt take it out till you figure it out.

Another consideration, run it inshore a few hours burning off some of the old and put some new on top. That will kill 2 birds, the most important of which is giving you the confidence that it's still good.
Old 05-24-2020, 07:13 AM
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Good input, btw.. well, it ran like a champ once I replaced the impellers. They had not started in months.. like 8, and it only took a turn of the key and they were back up. I planned to check the plugs later today to make sure they looked okay as well...but they were supposedly serviced before I got it.

I may take it to the lake next weekend and just burn off some gas, run fresh water through it. Problem is, the lake close to me is so small, I am worried the boat will crush the dock.. lol.. and the other lake.. well, may as well go 30 minutes further to the coast :P

But, like you said.. figured to take it easy, see how she does, and have plenty of spare parts and tools just in case..

I suspect I can burn a lot of the gas off the first trip... that will help.

R

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