Leak proof fuel storage in boat

Jeff Reardon

Well-known member
Anybody got a portable fuel container for small quantities--1=2 gallons--that will not leak if knocked or tipped on its side.

Do not believe either marketing hype or reviews about this one--or anything else I've ever used. https://www.amazon.com/dp/B000W72GBC?ref=ppx_yo2ov_dt_b_product_details&th=1

Don't care how good it is for pouring as a transfer fuel in the boat with a siphon. And looking for small and portable to carry a gallon or two of extra pre-mixed fuel, not bulk storage.
I carry a quart of premixed TruFuel for my kicker, the cans do not leak. They sell in a gallon can too. Spendy, but you wouldn't have to buy the can. I rotate them every year or two.
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I like Todd's idea.
When I was with the State, our field crews bought pre-mixed canned fuel by the case and kept it in their trucks for use in chain saws.
One reason was that it doesn't leak.
The other was the shelf-stability in the can and once poured into saws that might sit for 2-3 months between uses.
I?m surprised to hear that one of those cans leaked. I have had several for years with no issues. My suggestion would be to look at fuel bladders for off road vehicles. They make some one and two gallon bladders that are durable, leak proof and take up little space.
Jeff Reardon said:
Anybody got a portable fuel container for small quantities--1=2 gallons--that will not leak if knocked or tipped on its side.

Fuels containers like these or similar are quite popular.


It should be noted that even these, are designed to be fastened to a mounting bracket, thus they are not subject to being "knocked or tipped over ".
I also did this until I found out they sell ethanol free in New York and stock up heavily when we go to lake George. I still have the original can, and I just refills it with my own mix. Cheaper than the $20-40/gal for the premix. Great for all the motors i dont use often. Then it goes into the boat at the end of the year. Anything left after February goes in my junkie Honda to figure out.

Ultimately I guess I'm supporting those quart cans
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Use the can you originally linked to, and get one of these.


If the can is less than full they get a lot of pressure in the sun, but they are tight. There are two colors, grey and yellow. I use the grey ones on my older plastic cans, most of the newer cans use the yellow. It's the threads that are different.
Thanks for the replacement gas cap hint. Let me express my rage that the OEM caps leak. It should to be difficult to create a plastic cap that seals. Every condiment in my fridge has one.
I found the replacement caps within a year of when the new style caps became law. Of the dozen or so that I use, I have never had one leak. As stated the cans become pressurized when in the sun, especially if only partially full. Remove cap slowly, like on a soda bottle.
Good morning, Jeff~

Looks like you've got some good solutions here. "Environmentally safe" gas can caps have long been a frustration of mine. I now have the kind you show. As long as you relieve the pressure first - and I always store my cans in a shaded spot - it works OK for my lawn tractor - which has a fairly large diameter fill port. My small can for 50:1 mix - in saws and weed whacker - routinely sprays the mixture all over the world (and me) when I try to fill directly into the tool's tank. I guess I really need to use a funnel - but it seems to me the funnel itself would create lots of lost fumes by themselves.

Another problem: My smaller (3 gal, 1.25 gal) cans have internal plastic screens that make filling from a commercial gas pump almost impossible.

All the best,