O2brich

This is so true. I get better mileage driving a 2 lane road though the hills @60 then I get on the interstate @75 here in Colorado!
I have also gotten great mileage in traffic/construction zones where speeds average 45.

KRIEGHOFF

Drive it like you stoled it!

teejay

I'll step up to bat for ya. From San Juan Capistrano to O'side I've gotten 24ish before with my 5.0 3.55 Screw. But that was at 60-65 with the trucks in the right lanes.

Lost In Sync

They put 36 gallons of fuel into a 26 gallon tank? Hard to believe no matter how slowly they filled it.

acdii

When I had mine I gained about 2 MPG using Premium over regular. Kept the RPMS at or below 2K, cruised at no more than 1700 RPM, and on the Interstate saw between 21-24 MPG, depending on terrain. Drove from Rockford IL to Chino and back using various grades of fuel. 85-91 for the most part.

In my normal driving though, if I used anything other than premium, the MPG would drop to 16, when I used it, by the second tank it was back to 18. The one I had ran best on premium, it had 3.73 gears, max tow, screw, 6.5 bed, the works.

I made the mistake of trading it on a new Fusion Hybrid, thinking that getting 40+ MPG would make up for the power and trucking, boy was I wrong, the new Fusion I got is a lemon, gets less than 35 MPG, no matter where it is driven, and what temperature it is. It already had the spark plugs replaced at 4500 miles. Ford is giving me the company line of nothing wrong with the car. Considering getting rid of it and getting a 2010 Lariat or 11 F150 XLT EB. Although so very pissed off at Ford that I may not want another Ford. A 2009 Toyota Highlander Hybrid is looking so very good right now.

oynot

I don't see these claims of 20+ mpg. The very best I got was last summer of 18.x mpg. I run 87 octane, no ethanol. I run about 70-72 mph on the interstate and 60 on the 2 lane. Seem like lately I am lucky to get 15 mpg.
I took a dirt bike ride a couple weeks ago when it got warm 45 -50 degrees, before it really got cold -5.... Drove 70 mph on the four lane for and 60 on the two lane. Went about 250 miles down and back. Got right at 13 mpg, pulling a small Alummalite trailer with 3 dirt bikes.
Since I got back from that trip, I have been just taking it easy, driving 55 and not exceeding 60 mph. No 4 lane not pulling a trailer. Not babying it or driving agressive, just driving. I am not quite a half a tank and I am running about 16.2 mpg. Now some of the driving I was doing was having the 4wd in auto, and outside temps in the single digits.
The truck is bone stock, 3:55 rear end 16,000 miles and no ethanol has ever been in the tank. I have found the tire pressure to be a bit low from time to time and have to add pressure. Which the last time I did that I gained 2 mpg.
I have never complained about power, real happy with that. I know mileage drops in the winter here in Iowa. Have been told there is "winter" fuel for northern states. Which can effect mileage.
Thinking of taking it in to the dealer to have things checked out. Not sure if it need a re-flash of the ECU or something else. Or I am stuck with what I got?

greggebhardt

Moderate acceleration is key but anticipating traffic, lights, etc and letting you vehicle coast instead of using the brakes will gain much more!

The most important factor in getting better mileage is sitting on your shoulders!

summertop511

X2

Especially the coasting feature.

acadianbob

Yep, in urban/suburban driving, it's all about momentum. Getting 6,000 pounds rolling again takes fuel. Anticipate, coast, keep it rolling.

As others have pointed out, on the highway it is all about air resistance.

engineermike

FYI Winter fuel reduces mileage by about 2%. Winter temperatures have a much greater influence.