How many gallons is my fuel tank?

[HDRider]

Off topic, kind of...

I was sitting flat smack empty yesterday. I put in 14.9 gallons. The owners manual says 19 gallons.

Is there a way to tell by looking at the tank under the Jeep?

 

[mrblaine]

Off topic, kind of...

I was sitting flat smack empty yesterday. I put in 14.9 gallons. The owners manual says 19 gallons.

Is there a way to tell by looking at the tank under the Jeep?

Would it start and run? If so, then it was not empty.

 

[Jerry Bransford]

Would it start and run? If so, then it was not empty.

Exactly. The gas gauge is nowhere near being accurate enough to tell us when the tank is empty. Mine indicates it's empty when there's still 4-5 gallons left in the tank.

 

[HDRider]

Exactly. The gas gauge is nowhere near being accurate enough to tell us when the tank is empty. Mine indicates it's empty when there's still 4-5 gallons left in the tank.

That would be about what was left if it is a 19 gallon tank.

Can I trust the owners manual?

 

[HDRider]

Would it start and run? If so, then it was not empty.

I did not say it was empty.

 

[mrblaine]

Off topic, kind of...

I was sitting flat smack empty yesterday. I put in 14.9 gallons. The owners manual says 19 gallons.

Is there a way to tell by looking at the tank under the Jeep?

I did not say it was empty.

That's correct, you said it was flat smack empty and not being fluent in the vernacular used in Arkansas, I thought you meant it was empty. Now I know you meant something else. So, explain what they mean in Arkansas when they say "flat smack empty".

 

[HDRider]

That's correct, you said it was flat smack empty and not being fluent in the vernacular used in Arkansas, I thought you meant it was empty. Now I know you meant something else. So, explain what they mean in Arkansas when they say "flat smack empty".

I should have said it was "empty according to the fuel gauge" Sorry if I thought that was understood. Anyone would know it was not empty if the engine was still running. I did not say I ran out of gas. I said it was empty. I was going by the gas gauge.

 

[HDRider]

We didn't know the engine was still running, you didn't mention that part. Our info is only as accurate as yours. Had you said that the gauge indicated empty and the low fuel light had just turned on, we would have proffered a very educated guess that you would have about 5 gallons left in the tank because that is how they designed it to stop all the foolios from running out of fuel.

I will try to be more precise

 

[mrblaine]

Exactly. The gas gauge is nowhere near being accurate enough to tell us when the tank is empty. Mine indicates it's empty when there's still 4-5 gallons left in the tank.

I just fired up a behind and under the seat dual sump custom fuel tank using a JK fuel pump to keep the top of the tank low enough to put the filler neck in the side of the tub. We had to bend the float wire to match up to the TJ fuel gas gauge as close to OEM as possible. Guess what? We set it up to trip the low fuel light with 5 gallons left in the two sumps because that makes more sense than any other way to do it.