20 mpg last tank. I tried to take it easy to see how good i could do. Did not go over 65 on the highway. Tank was 60% highway, 40% in town. Not bad.

 

Wow...There were only like 4 or 5 posts when I posted....Whats the deal with all the "new" ones that werent there before?

 

THE PROBLEM MOST OF US HAVE WITH GAS MILEAGE RELATES TO BREAK -IN OF THE ENGINE. THE BEST WAY TO DO IT IS TO RUN IT HARD WHEN U BUY IT NEW, GET THE OIL CHANGED AFTER THE FIRST 100 MILES OR SO AND PRESTO YOU HAVE A GUTSIER ENGINE AND NOT A THIRSTY ONE.

 

I had a 2000 F150 2wd with 3.55 gears and a 5spd. I had crap for milage. 95% of my driving was on highway. I was lucky if I got about 16mpg on the stupid thing. My 79 4x4 with a 400 does better than that (18.5mpg). I kept driving it had it checked out three times and they couldn't find anything wrong with it. It had lots of power, I beat some punk in a Cavalier with it. After Ford wouldn't do anything about it I got rid of it. Yes i have heard of guys getting better milage with V8's, if you talk to the dealers they'll tell you that the supercrews get the best milage. Personally I think the motor is to small for the size of truck that its pushing.
TMK

 

How do you know what type of mileage you are getting? Before i got my truck i had a 1989 Lincoln Towncar with a 5 liter V-8... it had a digital readout that told me i was getting about 17.8 mpg. There is definitly no digital readout for my truck.

Beau

 

Easy math Beau. Fill up your tank until the first time it stops filling. Set trip-o-meter to read 0. Drive for a while. Take note of mileage, and then refill tank.

Divide miles by gallons pumped back in to be full.

IE 250 miles traveled, divided by 5 gallons gas to fill back up = 50 mi per gallon. No, you will NEVER see that from an f-150.

Garrett

 

miles driven
_______________ = MPG
Gal of gas used


Fill your tank up, reset your odometer. Drive 250 to 300 miles and fill up. Divide the miles you drove by the number of gallons of fuel you used,( number of gal. on 2nd fill up). The answer is your MPG.
Do this a few times for accuracy.
fishon49er

 

awesome... easier than i thought it would be. I just filled up and i have already driven some, but i didnt reset the trip meter... so i guess i will wait until next tank.

 

Hey, 4.2 truck drivers can do math?! HOLY CREEAP! I'm impressed.

Beau: Thou art not a fool anymore I assume... true4.2 (inspired by Yoda)

 

college math dont scare me none.... its the english that gets me!

haha... j/k guys... I'm literate even though im a product of public schooling.

 

don't forget to subtract any milage driven in reverse, ie: backing out of your driveway.
fishon49er

 

now your're bringing back memories from that commercial. you know the one were the guy picks up his date and the drives backwards the whole time to reduce the mileage on his car!!!!!
lmao

 

I don't know how much a difference it makes, but my 2wd supercab gets 18.7 and I drive it 70-75 mph on the interstate 60 miles round trip per day. It recently fell to about 14 mpg, but I since then tuned it up adding a k&n filter, replaced plugs, wires, and coil pack for the surge problem I had. Now it is back up. What rear end to you have and have you changed to bigger tires?

 

14500k miles, 2002, manual tranny.
Bought used and I am on 3rd gas tank
17.52miles/gallon average of first 2 tanks.
The second tank was a little higher I think because I changed the oil, oil filter, air filter, tranny oil, diff. oil, and checked the tire pressure everyday(now I check it every week).

 

5 speed w/ 3.55 rear end. XL Crew Cab. Consistently get 17.5 combined. I avg 75 mph on the Interstate.