Gas Usage

[SpringHollow]

The volumetric coefficient of expansion for gasoline is very close to 0.001/degree C so that would be very close to 0.0005/degree F. So 125 °F change for one gallon = 1 gallon +1 gallon x 0.0005/°F x 125°F = 1.06 gallons. So just from a "gasoline density" point of view, the cold gasoline would have ~6% more energy than the hot gasoline. I am pretty sure I am remembering the numbers correctly. I will check later and if i am wrong, I will post again.

Ken

 

[MossRoad]

The volumetric coefficient of expansion for gasoline is very close to 0.001/degree C so that would be very close to 0.0005/degree F. So 125 °F change for one gallon = 1 gallon +1 gallon x 0.0005/°F x 125°F = 1.06 gallons. So just from a "gasoline density" point of view, the cold gasoline would have ~6% more energy than the hot gasoline. I am pretty sure I am remembering the numbers correctly. I will check later and if i am wrong, I will post again.

Ken

I like eggs...


:laughing:

 

[jfh28]

thanks ken thats an interesting idea.......just measured the fill tube......it's 8" long at about a 45 deg angle........so at best I would only have a couple of inches of the fuel gauge in fuel when full so would need to find something a bit longer to be of use......Jack

from the pictures on the web site, you should be able to put in a float style fuel gauge into the fill tube, replacing the solid fill tube cap. For example, my ATV has the style where a float runs up and down a twisted piece of metal. The float rising rotates the metal causing the half dome gauge built into the gas cap to rotate. A commercially available one might not be accurate for real amounts but it would tell you some idea of how much you have.
Just did a quick search and found this one that is 10" long:
Gas Tank Cap - Arctic Cat Snowmobile (167241) (w/Gauge) [21146] - $15.5 : Parts Reloaded, Your Source For Hard To Find Motorsports Parts
Here is one that is 13.5" long:
Amazon.com: Kelch 54-1815 13.5" Gauge Gas Cap: Automotive
It would not be that hard to make an adapter to be able to use one of these but there might even be one that fits directly.

You could also add a sight tube to the tank but I would be less than thrilled with that unless you put serious protection around it. Another option is to keep the fill tube/cap as is and have another flange welded on for a dedicated float gauge.

Ken

 

[jfh28]

I've never measured how much fuel my tank holds but based on whats left in a full 5 gal gas jug after filling I'm guessing my tank holds a little less then 3 gal as I get pretty close to two fill-ups per 5 gal jug....my tank is a welded pt custom steel tank so I'm thinking it was designed based on room available and not on vol of fuel to fill......Jack

We've got 4 usable gallons on most gas powered Power Tracs. Would it be noticeable to an eyeballer?

 

[MossRoad]

Could be time for a project.... make your own fuel gauge.

 

[cqaigy2]

The volumetric coefficient of expansion for gasoline is very close to 0.001/degree C so that would be very close to 0.0005/degree F. So 125 °F change for one gallon = 1 gallon +1 gallon x 0.0005/°F x 125°F = 1.06 gallons. So just from a "gasoline density" point of view, the cold gasoline would have ~6% more energy than the hot gasoline. I am pretty sure I am remembering the numbers correctly. I will check later and if i am wrong, I will post again.

Ken

Wow! I like bacon with eggs.

Ok, so how much time in a tank of gas, say 4.5 gallons? Does 3.5 minute per gallon sound right?

 

[MossRoad]

Wow! I like bacon with eggs.

Ok, so how much time in a tank of gas, say 4.5 gallons? Does 3.5 minute per gallon sound right?

On mine, I get about 50-55 minutes per gallon.

 

[cqaigy2]

Cool video on the remote fuel gauge. Thanks

Would have to make sure it leaks around the seal, just like my fuel cap does.

 

[CADplans]

About a henweigh.

Nobody has asked,,, what's a henweigh?? :laughing:

I run a LOT of gas through 2 gas engine machines, including one with a 24HP Onan,,,

I see very little difference in fuel consumption due to temperature.

 

[4570Man]

Wow! I like bacon with eggs. Ok, so how much time in a tank of gas, say 4.5 gallons? Does 3.5 minute per gallon sound right?

I got about 1.5 GPH on my 25 HP Kohler.