Mercury mark 25 fuel consumption

[cheetahgod]

Will a 3 1/4 gallons gas tank be sufficient enough for a 11ft class b uitility with a mark 25. What is the fuel consumption on a mk 25 like?

[dave-bernard]

more than enough for your B Utility. even at full throttle .

[chinewalker]

By the rule of thumb of a gallon per hour at WOT for every 10 hp, you should be fine for a couple hours anyway. The rule of thumb is variable, to say the least. Best bet, I used to tuck a quart bottle of mixed fuel in a safe spot as a get me to shore reserve. If you’re just running around your cottage or the ramp, you’ll be fine. If you’re exploring, it’ll be enough to get you to shore.

[cheetahgod]

Not sure which size would be better?

[cheetahgod]

Any other options?

[William Jatzek]

Yes just pick up another fuel tank and have 2 on board. Bill.

[chinewalker]

Chances are, on a B utility, you’ll give out before your fuel does. They can beat you up a bit, especially if there’s traffic on your waterway. Best option, run it and see how much it uses. Bring a measuring stick if you have to and run it for a half hour. Check your level to get a feel for how much you’re using. Every rig is different. If you have the stamina for long runs, get a bigger tank or a second tank if you feel you need it. Not sure we can definitively say you need X or Y as we don’t know your situation and how far you plan on going away from your dock.

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