Got 464 miles out of my last tank and put 23.5 gallons in the tank this morning which gets me 20.5 mpg's.

Now, 99.9% of that was highway.

 

Driving habits have a greater effect on gas mileage than any other factor. These things are trucks built to work - if you try to drive them like cars, playing games with ricers, the mileage is gonna suck.

 

Well look who comes out of the wood work...

How's V6150.com doing for ya? Eh, may I ask, why all the scramble/postings on one day? Or do you miss me? Yeah, I miss you guys too... but that site was messed up brother... until it comes clean like f150online.com is, then I *might* return. But who knows....

Anyways, I've been averaging about 21 mpg as a cumulative average on tanks with the 4.10's.

 

Configuration, even factory, I believe might play a factor in a few mpg difference. I've seen configurations with 3.55s turning the 20 inch rims Ford has. I would assume this would be different(maybe only slightly) as compared with a truck with 17s and 3.55s. Ford likes to mix up the tire sizes, rearends, etc. I wonder if this plays a factor in a few mpg difference in our trucks????

 

17.5 mpg highway. 16.5 in a headwind on the highway. 13.7 city driving. 10.9 mpg with a 6500lb trailer on the highway. My 07 4x4 got around 10mph the first week that I had it, 14-15 on the highway. They do get better with age. Not sure about years, but definately get better in the months to come.

 

2000 F150 ExtCab 4.6L Windsor and VAGINA 3.08 rearend.
If i keep shifts under 2500 it gets the same gas mileage all the time.
I can't wait for the 3.73s to go in. I have been traveling like a ***** and I am ready to get home and give her (and the Mrs.) some TLC. See my sig for mods and ignore the 4.10 quote. 3.73s are just more practical for me as I use her as a daily driver the majority of the time and the trip to work being 8 miles from door to door or there abouts. My highest mileage was on vacation from texas to virginia. 20.12 +/-

 

Nice to see you have nothing better to do than stalk me.

 

Stalk you?! LOL How am I stalking you? You are the one posting under that name, and I happen to clearly be a very active member of this forum, so I notice things like this. Besides, I sense a bit of hostility in your tone, so I must end discussion with you. Have a nice day.

 

I only get about 16 mpg on the highway, which accounts for the majority of my mileage.
I have a 2007 5.4L F150 Supercab, 4x4, 3.73 ratio limited slip axle, flex fuel. I am assuming that the fact that it has a flex fuel engine, and is a 4x4,accounts for the fact that my gas mileage is much worse than my 2001 F-150 4x2 supercab with the small (4.2L) V6 engine.
Any thoughts?

 

Is that 16 on E85, E10, or straight gas?

 

imo, the 4X4 has a negligible effect--there's often more difference between 2 4X4 pickups fuel economy than between a 4X4 and 4X2

the flex fuel engine idea is something i've often wondered about--i'd be interested in seeing comparisons of mpg figures between ffv and non-ffv...using gasoline, not E85...

...all in all though, i think it has more to do with the driver than anything else

 

I drive mine pretty hard. I like to get up and go, so no slow starts. I get between 16.5 to 17 around town and commuting. I get 19 to 19.3 on the highway driving 75 to 85. I lose about .5 mpg when they add 10% ethanol. I get the best mpg when running 93 octane with the Edge on level 3, plus it is more responsive. It's a 4X2, 5.4, 3.55 LS, Supercrew. I have almost 57,000 on it and have kept records of all gas purchases and mileage since new.

 

Running pure gas in a FFV should get you identical mileage to running it in a non-FFV version of the identical truck and engine.

 

no argument here...but the key word being should

i agree it should, just wondering if it does

in the grand scheme of reported fuel economy i've seen or heard, there's really not a lot of difference...it's the lows of 11-12 reported by people who claim to drive with a gentle throttle in stock pickups that don't make a lot of sense--that's over 30% difference from the 16 mpg that many of us get in city driving...no way to tell if it's because of the driver or the vehicle without a scientific test, but one of the few variables in the vehicle is the ffv engine, so i'm interested in the data

 

I doubt any difference would be as great as normal variance between particular engines. Let's take 2 IDENTICAL trucks - and drive them side by side EXACTLY the same way from day 1 - I'd bet the mileage will not be identical.

Had a friend years ago with a Taurus wagon with a 3.0 - it never got better than 21 MPG on the highway - the expected mileage *should* have been around 27 - he had the thing dissected with a fine toothed comb and absolutely EVERYTHING was within specs.