Fuel Sensor
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Joined: Jan 2007
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From: MCAGCC 29 Palms Califonia
Fuel Sensor
I have a 2001 F150 4.6 ext.Cab and I don't get great gas milage due to my own stupidity. I do however get close to 100 miles on the first 1/4 tank (semi-city driving lots of lights) and on the Interstate I will get 140-150 miles to the first quarter tank. After that it just PLUMETS like 40 next quarter, 40 on the 3rd quarter, and the last one is is 50 or so depending on the type of driving I am doing. On the highway the last quarter last me 50, or 60 miles but I am wondering if this 1'st quarter is wierd to anyone else. 150 miles to the first quarter and then crap??? I blame myself the bad gas-milage in the semi city driving because I am on the gas off the gas (repeat several times) and I have a big ego so I never let the guy next to me at a light pull out ahead unless he is an antenna salesman. Now I am rambling but anyway does anyone elses fuel guage do this?
~Phil
~Phil
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Joined: Aug 2006
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hey man. i know what your talkin about when you say you like goin faster than people. I put a lift on my truck with bigger tires and all that. But i have noticed that my truck reads out that i have a full tank after 45 miles or so, then it drops to a quarter tank real quick. Then it holds up for awhile and does it again. I dont know what causes that but i have the same problem too. If you figure it out, let me know. thanks.
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Joined: Jul 2004
Posts: 6,200
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From: Easton, Pa.
You can't go by how the needle acts vs mileage.
The gage is dash processor driven for position and is updated at intervals.
The total distance you drive and the gas you put in the tank to measue total used is the only accurate way to see the mpg.
The gage readings are non-linear at best.
When the red light comes on you still have several gallons left in the tank.
The result is you fill up and see the number of gallons but what does it really mean?
You have to do this several times on the same route, then average the results, to have the best ave mpg.
A gage is near useless for this except as an indicator of when to stop at the filling station if you don't want to get stuck somewhere. It only tells you the 'relitive' amount of gas in the tank.
The gage is dash processor driven for position and is updated at intervals.
The total distance you drive and the gas you put in the tank to measue total used is the only accurate way to see the mpg.
The gage readings are non-linear at best.
When the red light comes on you still have several gallons left in the tank.
The result is you fill up and see the number of gallons but what does it really mean?
You have to do this several times on the same route, then average the results, to have the best ave mpg.
A gage is near useless for this except as an indicator of when to stop at the filling station if you don't want to get stuck somewhere. It only tells you the 'relitive' amount of gas in the tank.
Last edited by Bluegrass; Feb 23, 2007 at 12:55 AM.
