Avoiding Bad Gas Issues

[oncebitten]

I accidently posted this in the wrong section, so I'm reposting here. Can anyone with experience suggest ways to extend the life of fuel to avoid bad fuel issues. I only go through about two refills on my 3 gallon tank in a season, so it can sit around for up to a month or more in the tank, which seems to be the cause of some of my engine issues.

I thought of going to a smaller tank, which might force me to freshen up more often, but will be annoying if I get caught running on empty. I also was wondering if adding a stabilizer to the fuel would work, even though it is new and will not sit for more than a month or two. Do you think that might be a good idea? Would it cut down on the moisture in my tank, which seems to be the biggest problem for my Nissan 18hp 4-stroke. Perhaps one of those fuel/water separator filters? What do you think, any tips or tricks.

 

[rickdb1boat]

Re: Avoiding Bad Gas Issues

I would just add some stabilizer. That will keep it fresh for quite a long time without worry...Or if it just a few gallons, use it in your car and fill up with fresh fuel the next time out...

 

[Pony]

Re: Avoiding Bad Gas Issues

I agree with Rick,

Use some stabilizer or maybe even some Seafoam. I add Seafoam to every other tank or when I know I wont be using the motor for a few weeks. I started the season with 6 gallons of last years fuel.............NO problem whatsoever.

 

[oncebitten]

Re: Avoiding Bad Gas Issues

Great! I think I'll try that first, but please, if anyone else has ideas, tips, tricks, let's hear them. Thanks again.

 

[Texasmark]

Re: Avoiding Bad Gas Issues

I think that you should just use your boat more often and don't put more fuel on than you think you'll need. That way you'll keep turning it over.

I have a 22 gallon tank and usually use from 3 to 5 gallons on an outing. 10 gallons is my full mark; saves weight also. Additionally, I add fuel on the way to the water, not on the way home and buy regular gas from a busy station. That way I know the fuel is fresh.

I try to be in the water at least once per month and in the winter time I run on muffs if I don't feel like the freezing drizzle in the face.

Also, if you use Sea Foam as a constant additive (directions on the can), it is advertised as a fuel conditioner and is said to help keep it fresh. Add it when you fill up per their directions and it is immediately ready to help keep the new fuel fresh.

My 2c.

Mark

 

[oncebitten]

Re: Avoiding Bad Gas Issues

I think that you should just use your boat more often

I agree! Thanks guys. I added stabilizer to a fresh 3 gallons. I will try this first. This and I'll be more vigilant about running the lines dry at the end of the season. I hope I don't run into anymore problems.

 

[Bob_VT]

Re: Avoiding Bad Gas Issues

Considering it is a 4 stroke and the gas is not pre mixed with oil you have alot of choices....

You could just drain the gas tank into your vehicle (I see it is a Ford pick up and they always have room for 3 gallons) and just get fresh gas everytime out or use it up in your lawnmower. We are not talking about a great quanity and you can save the money on stabil.

I looked at your boat site and it is beautiful. You should be real proud! My compliments it looks like a showpiece.

 

[Mark42]

Re: Avoiding Bad Gas Issues

According to Exxon/Mobil, the fuel will be fine if stored properly:

" Gasoline should generally be used within a month of purchase. When the engine will not be used for an extended period of time, the conservative approach is to drain the fuel tank and then run the engine until it stalls. If you choose to store gasoline, keep it in very nearly full (minimizing air contact) tightly sealed metal containers (minimizing the loss of light ends and the availability of humid air) in a cool environment (slowing down the rate of oxidation). Be sure to leave some room in the container to allow for some expansion. Under these conditions, the gasoline would be expected to remain of good quality for at least 6 months. "

 

[oncebitten]

Re: Avoiding Bad Gas Issues

Thanks for the compliment Bob, and the information guys. This is good stuff.

 

[pecheux]

Re: Avoiding Bad Gas Issues

oncebitten: Nice rig ... congrad

After winter I normaly dump the outboad gas tank into my vehicule and fill up the car with high test gas + add some injector cleaner. Then use new gas/oil mix in the outboard.

This coming winter I plan to use stabil + carb cleaner in full tank and use it as is in the sping.

Cheers