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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 Use a smaller fuel tank		  New Topic  Topic Locked
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OJ
Master Marine Consultant

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USA
4382 Posts
Initially Posted - 06/26/2013 :  09:48:17  Show Profile
I have mentioned my frustation with current fuel mixtures and the unpleasant surprises that can come with it. Has anyone adapted their fuel line connection to a smaller fuel tank - (more like a gas tote can?) This way I can always take a fresh can of gas with me. We only use the outboard for docking getting out to where the wind is - on an inland lake.

1989 C25 TR/WK, #5822
1973 McVay Minuet 19
1975 Jester 12
1981 C25 SR/SK, #2428
1981 C22 SR/SK,
Tanzer 16
Sunfish

"There is nothing, absolutely nothing half so much worth doing as simply messing about in boats." Kenneth Grahame
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awetmore
Master Marine Consultant

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USA
1144 Posts
Response Posted - 06/26/2013 :  10:04:40  Show Profile
When I had my C-25 I kept two fuel tanks. A 3 gallon one for regular sailing, and 6 gallon one for cruising.

I also made up a fuel line that didn't have the fitting for the outboard end. This made it easy to pump fuel out of a fuel can into my car or a dinghy outboard. I used that to (pumping into my car) to get rid of fuel more than about a month old and to replace it with fresh fuel.

I wish my new boat, with a diesel inboard, also had a 3 gallon tank for day sailing and the 12 gallon built in tank was only used for cruising. Without an annual cruise it will take me over a year to consume 12 gallons of fuel. When diesel sits around for a long time water also gets into it, which then turns into algae that clogs fuel filters.
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GaryB
Master Marine Consultant

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USA
4304 Posts
Response Posted - 06/26/2013 :  11:13:41  Show Profile
I've only got a 4 gallon tank but I bring along another plastic 5 gallon can to either bring in fresh fuel or dump the old fuel into so I can carry it up to the truck.

I use one of these to transfer the fuel -->> http://www.wakehouse.com/products/safety-siphon-fluid-transfer-hose.html?gclid=COyrg6apgrgCFZOk4Aodi1sApw

You can get them at most auto parts stores. Fuel flows fast and it's easy to get the siphon going.
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islander
Master Marine Consultant

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USA
4024 Posts
Response Posted - 06/26/2013 :  15:33:54  Show Profile
Honestly without researching fuel tanks, I think that a 3gal. tank is the smallest there is that would be considered an above deck tank with a proper vent.
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shnool
Former Capri-25 Tech Editor

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USA
1032 Posts
Response Posted - 06/26/2013 :  16:34:11  Show Profile  Visit shnool's Homepage
1 liter internal tank. I bring a 2.5 gallon jerry can when I need more fuel. The Capri does not have a fuel locker.
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 06/27/2013 :  10:42:51  Show Profile
I have seen tanks as small as 1.25 gallons. I use 2 tanks of 3 gallons each. I fill the second tank when the first is getting low or I'm planning a long trip.
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dmpilc
Master Marine Consultant

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USA
4593 Posts
Response Posted - 06/27/2013 :  12:41:04  Show Profile
I found that two 3-gallon tanks would fit snugly into the fuel locker of our C-25. I would swap out tanks as needed.
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TakeFive
Master Marine Consultant

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2272 Posts
Response Posted - 06/27/2013 :  20:21:29  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by OJ</i>
<br />I have mentioned my frustation with current fuel mixtures and the unpleasant surprises that can come with it. Has anyone adapted their fuel line connection to a smaller fuel tank - (more like a gas tote can?) This way I can always take a fresh can of gas with me. We only use the outboard for docking getting out to where the wind is - on an inland lake.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
I think bringing new gas every time is overkill. With gas the culprit is E10's hygroscopic nature, which sucks water out of the air, and hydrolysis reactions that create acids that harm your motor. I use a two pronged approach:

- Keep condensation out of the tank by minimizing air space (keep tank topped off) and keeping the vent sealed. Also, avoid the temptation to vent the tank when it's under pressure, since it will just build up the same pressure because the gas has a significant vapor pressure in hot weather.
- Prevent hydrolysis reactions in the gas by adding a fuel stabilizer.

In addition to my 3 gallon tank, I keep a 1 gal can that is my emergency reserve. When I use a gallon out of the 3 gallon tank, I top it off from the 1 gal can and take it to the gas station for a refill. Every 2 months I empty it all into my car and start over with fresh gas.

I'm not sure what I would do with a diesel motor - I'd probably have to buy a diesel car. It's very convenient having a 4-cycle outboard so I can burn off the gas in my car.
Edited by - TakeFive on 06/28/2013 14:53:56
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cat25
Navigator

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USA
140 Posts
Response Posted - 06/28/2013 :  12:44:45  Show Profile
I have a 1990 cat25and I store two 3 gallon tanks in the fuel locker. I put them both in the long way in together the fit nice and snug.
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OJ
Master Marine Consultant

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USA
4382 Posts
Response Posted - 06/28/2013 :  13:38:55  Show Profile
Looks like a 3 gallon tank and a funnel is the ticket!

Fresh gas every trip.

I hate Etahnol gasoline.
Edited by - OJ on 06/28/2013 13:39:59
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dmpilc
Master Marine Consultant

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USA
4593 Posts
Response Posted - 06/28/2013 :  20:36:39  Show Profile
Buy a second 3-gallon tank and put the same fitting on it that the first one has. No funnel needed.
just swap tanks when the first one gets low, and take the near empty one home for a refill. Both will fit in the gas compartment. I would limit my refills to 2 gallons; worked very well. for a longer trip, fill her up.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.