My mileage is around 15mpg. I first measured it at 17. Shouldn't I get better? Especially with a 4.6l?

 

that sounds pretty good to me. any gas truck getting 15 or above is real good.

 

You're getting better than me. I get in the low 14s.

TXHarley- Which blower do you like better? I'm on the fence with a roush, but would like to add some power to my 5.4L. Thanks...

 

Sounds good to me too! I get 14.2 mpg...

 

It is right. I get the same as my buddy with a 4.2 6 cylinder. You put a smaller engine in the same size truck, it has to work harder. Lately, with winter gas and a little harder driving, I have been getting 12-13 in town and 17 on the hwy, so you are doing pretty good.

 

Twinsdad - The saleen came factory. I have owned it since new. The dealer installed the Roush on the other one, they drove it as a demo, and we bought it with 4500 miles. I think the saleen is more finely tuned. It is ultra smooth, and real quiet. It idles perfectly,doesn't hiccup at all. The Roush idles a little rougher, engine is a little louder. The Roush, from what the dealer told me, will outrun the saleen. I think they will run the exact same. i have done alot of research of both, from i have researced the saleen series VI is more advanced. It takes less boost to make more power, and keeps the engine under alot less stress. If you want supercharger whine, get the Roush. Also keep in mind, i rarely drive the saleen. It sits in the garage and only has 650 miles on it. I am still in my break in period, so i haven't got to hammer it yet.

 

Thanks everyone. I guess I can quit my bitchin'.

 

Having seen numerous threads on mileage and the F150 PU, it is worth calculating (in dollars and cents) how much your gas mileage (or lack there of) really costs you annually.

Assume the following:
You are getting approx 14MPG average.
You wish you were getting 20MPG average.
You drive about 15,000 miles annually.

You'd use about 1071 gallons of gas per year at 14MPG. (15000/14)
And you'd use (wishfully) 750 gallons of gas per year at 20MPG. (15000/20)

The difference is 321 gallons (1071-750)
Gas is about 3.00 per gallon.

Therefore it is costing you about $1,000 (3.00*321) per year extra in gas to drive your F150 vs another ride getting closer to 20MPG.

For me, the convenience of owning a truck like this, combined with the safety, and nice ride makes this a no-brainer. While I also wish that my 06 SCREW F150 got better mileage, it is interesting to do some quick math (plug in your own numbers), and keep the gas mileage (costs) in perspective.

 

 

Hey ScottInTexas and you other 4.2 owners, doesn't that feel like a rip-off to get no better economy than a typical 4.6 or 5.4 V8? What's the point of putting a V6 in a full size pickup if it's not for economy? I'm actually getting better mileage with my 5.4. (Not trying to brag, just trying to make a point). I had considered a 4.2 when I bought my '06 because I am interested is saving on fuel, but the EPA rating was only 2mpg better than the 5.4. And I had to give up power and higher trim levels to get the 4.2. I thought it was too big of a trade-off for all the more that I would be saving in fuel. From your post, it looks like there is no advantage to the 4.2 other than a little lower initial cost.

Dale

 

exactly...the only reason to get the 4.2 or 4.6 is to save $$$ when buying the truck. getting the small motor for saving gas doesn't hold true anymore. in the late 80's and early 90's, the 300 ci I-6 was the better motor for power and mpg...not anymore though

 

15 or more mpg is pretty good for a truck a lot of people have a hard time breaking that

 

I just took my new to me f150 scab 4x4 4.6 motor on a snowmobiling trip. I towed 2 sled's in a enclosed trailer, with enough provisions for the wife and I for a week. The weather was 0 degrees to -15 for most of the time the truck was used. I did about 550 miles and got just over 14 mpg. I think this is great for the condition's I was in. summer weather and conservative driving I am expecting 16 and 20 mpg (no load or towing).

Karl

 

Buying a 6,000 lb. brick and complaining about the fuel economy is like marrying a fat woman and complaining about the grocery bills. You had to know what you were getting. Besides I bought my truck to haul and tow with, not save gas. I ride the motorcycle when I want to save gas, 48 MPG!

 

With all of the development going on with direct injection, diesels, and hybrid technology, I think we may only be 5-10 years away from a 28-35mpg F150. When that happens, all of these 14-18mpg slugs we're currently driving won't be worth much more than scrap price.

http://editorial.autos.msn.com/artic...umentid=457882
After all, if the Germans can design a 150mpg turbodiesel car (see above link) that they will sell in Europe in 2009, we can't be too far away from a 30mpg F150 . . .

Dale