Fuel Level in Round Tank

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Jugster
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Fuel Level in Round Tank

Post by Jugster » Tue May 13, 2025 2:39 pm

Poll:
How low can you run the fuel level in a cylindrical, under-seat, 10-gallon fuel tank?


South Park Zephyr
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Re: Fuel Level in Round Tank

Post by South Park Zephyr » Tue May 13, 2025 2:57 pm

For an oval tank, empty.
Voice of experience talking….


Norman Kling
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Re: Fuel Level in Round Tank

Post by Norman Kling » Tue May 13, 2025 4:32 pm

Depends on driving conditions. The tank is under the seat, so if you are going uphill you will need at least 3 gallons. On level or downhill, you can run until it is empty.
Norm

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RajoRacer
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Re: Fuel Level in Round Tank

Post by RajoRacer » Tue May 13, 2025 4:55 pm

Considering the sediment bulb is 1/2" pipe and normally is protruding up into the tank a bit, until she quits running !


Wayne Sheldon
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Re: Fuel Level in Round Tank

Post by Wayne Sheldon » Tue May 13, 2025 10:52 pm

Also depends on whether or not there is any added restriction in the fuel routing, either by design (like an added fuel filter?) or by material failure (kink in the tubing, Shellac build up due to old gasoline, rust flakes, or any of a hundred other things?).
On level roads, any standard model T should be able to run the gasoline tank down to less than a half cup of gasoline left.
I have literally seen a model T touring car stop running, after a long drive, with a gasoline tank so dry that not even a wet spot could be seen on the end of the wooden dip stick.

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