well you don't drive like a pansie like I do! When I drive my truck, I am always taking it easy. Now that I have parked it and drive my focus, I drive like a mad man. And get 33.5 mpg to boot. I really love my focus ST. A blast to drive. I miss my truck big time though. I will drive it one time this week.. to dump my garbage from my construction project. One of the benifits of where I work.

 

Lately a ˝ tank (15 gal) last me 2 weeks on average. I watch my computer and drive it down to 50 miles and fill back up to ˝ tank. Around town I notice much better mileage and performance (stop and go) when the truck is light. If im good round town I can average 15mpg. on the road it's between 18-20mpg.
On my heavy foot days I have seen 9mpg or less.

For road trips I fill up to the max and start planing a stop around Ľ tank.
Driving the speed limit long distance below 70 pushes me a little over 20 mpg depending on how long use cruise.

 

the only time i fill up is when i'm going on a trip that requires me too.
other than that i put like $50 in it for a week or two cause all i do is in town driving

 

I am bad about waiting until the LAST second to fill it up but I'm going to try and fill up when i get to about a half of a tank.

 

At nearly $120 to go from gas-light to full, I usually cruise the buck-fifty at or just above 1/4 tank. I work 6.7 miles from my house, so at a quarter tank, I can drive to work about 7 - 8 days before I need gas again- to include my weekend runs to Wally World, Target', movies and the grocery stores.

I keep it around 1/4 tank, and fill up when the "Low fuel" thing comes on.

If I put it at 1/2 or more- the wife will run the other car down to "E", then jump in the truck and run all my gas out too. So, since she works 35 miles from our home, she won't take the truck if it's at or below 1/4 tank. She'd burn that much in one trip in city traffic. So, it's 50% being cheap, and 50% strategy- that I keep the truck at 1/4 tank.

But, if we're getting on the road, then I'll filler up; which usually costs me $90 - $120.00.

 

Yeah, I was doubting these guys too (I still do for those with the 5.4L) but, based upon my own perceived performance, here's what my baby can do.

Like I said, I keep it at about 1/4 tank. I can generally drive to work 7 - 8 days on that, so I averaged that to 7.5 days.

So, it's 6.7 miles to work, and 8.9 miles to home (pick up parent) so I drive 15.6 miles/day. 15.6 * 7.5 = 117 miles. I drive it until the low fuel indicator comes on, which according to the manual is between 0 - 2 gallons. Since I've never run out, I'm sure it's closer to 2 than 0. So, to go 117 miles of all city driving, I'm burning 5.5 gallons +/- to cover that distance.

I know this is ball park math, but mathematically, I'm averaging about 21.27 MPG in the city. It shoudl be noted that I rarely have occasion to go over 45 MPH- so, take that into consideration as well.

Road trip. I covered 496 miles from KSU back to my house on 1 tank of gas, and I still had a little under 1/4 tank left when I backed into my garage. I have the 30 gallon tank, so I used about 22.5 - 24.5 gallons to cover that distance.

496 / 22.5 = 22 MPG.
496 / 24.5 = 20.24 MPG.

I seem to remember it being lower than that- but, one can never be sure they had only 30 gallons in the tank (or more) or if at 1/4 tank there's 7.5 gallons in there- or more- or less. So, this is all ball park estimates.

But, given that the 4.6L is more fuel efficient than the 5.4L, I'd question any phenomenalmileage estimates from anyone with a 5.4L...

And, before anyone says anything- Yeah Yeah Yeah, It doesn't have to work as hard because it's stronger than the 4.6L. OK ..

Neither engine works hard at speed. I think it takes, what- 20 horsepower to maintain 60 MPH at speed?

 

About every 3 days, close to 300 miles, daily commute is 98 miles round trip.

 

I normaly dont let it go below half a tank. I put on about 400 to 600 miles a week depending on my travel schedule. I also get 16.9 MPG cruising down the highway at 65 to 68 MPH.

 

based on all the posts I have seen here since I have joined, I have the distinct impression that the milage difference is the same or a little better with the 5.4 3 valve than with the 4.6 in the new body style. Take it for what you will. I think the 5.4 3 valve is just a more efficiant engine.

 

Once i get near the half mark i like to fill up. I can usually get about 1.5 - 2 weeks until i'll fill it again. I havent let it drop below a half tank since i've had the truck (which has only been a couple months).

 

From your info your truck is alot like mine, how you liking it?

 

im lucky to get 13mpg mixed, though i can get about 22 if i set the cruise at 55 when i go down south and it's all flat roads. around here it's so hilly that if i use cruise control it will shift down a bunch.