ya girlfriends get very pricey! they should be tax deductable

 

About 5 gallons when my light comes on and about 2 or 3 left when I fill it.

 

the girlfriend really isnt all that bad, but shes still a girl!


Thanks for the info everyone



-Alan

 

On my 2002, 6 gallons is about right as far as I can tell.

 

From my experience, I get about 60 miles after the light comes on (30 before the indicator gets exactly on "E" and another 30 before the indicator is resting at the very bottom of the gauge). Then when I fill up I usually get a little over 24 gallons in a 25 gallon tank.

Something else I've noticed, can anyone else figure out why I can get 200 miles out of the first half of my tank but only 130 out of the second half? Obviously there'd be a minute change in fuel economy due to lighter vehicle as fuel is used, but that would logically cause the opposite phenomenon (getting more milage off the second half). If anyone can explain this, I'd love to hear it.

 

There could be a variables making it a slightly different amount for each vehicle, tank size, mpg etc....

Next time the light comes on go to the nearest station and fill-up.
Then take the size of your tank (25-30) and subtract how much it took to fill up. The difference is how much was in there when the light came on.

Multiple your MPG X the difference and that will answer the question for your particular truck.

Personally, I wouldn't believe any of the posters above.
One of them is in elected office, two of them are pathological liars and another one is signing on from prison.

 

I think this is because of the way the tank is shaped.

 

When you fill up your tank, the level of the gas goes beyond the range of the tank float, in other words the float is raised to it's maximum but the gas level is actually higher. As the gas is being used, the gauge doesn't start to register until the gas level drops to within the range of the float. That's why when you have a full tank, it takes a while before the gauge level even starts to drop at all.

 

01screw, you're right that the truck gets about 40 miles before the needle begins to drop at all, but it also gets 30 miles after it drops all the way to the bottom, so this would seem to balance on both sides. I think FastFord19's got a pretty good idea with tank shape. If the gauge is run by a float that just measures linear travel and the cross-section of the tank changes (gets smaller) toward the bottom of the tank, that would account for the disparity in draining rates. I guess it'd require too much engineering (cost too much) to design a different measuring system to account for this.

Jeff

 

Yeah, the tank shape would definately have an impact. All in all, the gauge is just a reference to give an idea, not a precision instrument.

 

I run my dual tanks into the red all the time, 90 f150 100K+ and no fuel pump probs

 

As a Marine stationed in So Cal and being from Nor Cal, I drive home whenever we get a few days of liberty. Home is right under 400miles away, now Ive driven home dozens of times so I would consider myself an expert on pushing the limits when it comes to remaining fuel, from my experiences and calculations I estimate that my 2002 f150 gets about 60 more miles after the light goes on, Ive never run it till it stopped but I went 57 miles one time and it started to lose power in the acceleration and Im pretty sure that I was about 100 yards from coasting to a stop. But hey thats just how I roll, also Im almost at 100,000 miles and no fuel problems yet.

 

the light came on right when i was pullin into the gas sation. held 21.4 gallons. How big is my tank on a 01 supercrew

 

25 galllons