I was just wondering if anyone out there knew how to get a little better gas milage out of the 5.4L V8. I have a 2002 f150 with 3000 miles on it. I have been getting 11-12 mpg at the best. Any help would be great. Also I was curious if adding a supercharger will void my factory warranty. Thanks for any info
Sean jensen

 

>I was just wondering if anyone out there knew how to get a
>little better gas milage out of the 5.4L V8. I have a 2002
>f150 with 3000 miles on it. I have been getting 11-12 mpg at
>the best. Any help would be great. Also I was curious if
>adding a supercharger will void my factory warranty. Thanks
>for any info
>Sean jensen

Where are you driving that you only get that 11-12mpg? When I drive my 5.4L 2WD, I get about 15 with a heavy foot. That is strictly miles/gal's. But when I do drive it I commute into North Dallas about 40 miles. On a long trip to Longview(2 1/2 hrs by highway) I averaged 17.4mpg at 65mph...

 

Only 11-12mpg with a F-150?? something must be wrong here.. I get a little better than that with the 5.4L in a F-250 SD; and that's with a mild lift and bigger tires!

 

12MPG seems a little low, but keep in mind there are only 3000 miles on the truck. You didn't mention if the truck is 4 wheel drive or not. My '98 5.4 4x4 EB Expedition with appx. 50,000 miles gets around 12.6 MPG on a 70% city/30% hwy mix. On a recent 600 miles trip I averaged 16.7 on the hwy only.

 

well, i dont feel so bad now. my 02 super duty is getting round 12.5-13.5 mpg with a 6 sp 4x4 and 4:10 gears.


-nathan

 

>well, i dont feel so bad now. my 02 super duty is
>getting round 12.5-13.5 mpg with a 6 sp 4x4 and 4:10 gears.


I wouldn't feel bad about that at all.. took a road trip a few weeks ago and was excited as all hell when I got back and figured I got 13.2 mpg!
that's with an '00 SD XLT CC 4x4 (5spd w/ 4.10's)

 

Sorry the truck is a four wheel drive. So it has to pack around the extra weight. I have recently been able to get a little beter gas milage but I have to frive like an old lady to get it. Does anyone know if headers will improve milage or a chip. Thanks

 

My 98 F150 ext cab 4x4 gets 17 hwy 12-13 city. sounds about average

 

I just picked my truck up last Thursday. I drove it on a trip this weekend. I filled it twice and ran it down to about 1/8th tank each time before refilling. I checked the mileage both times, and the first time I checked the numbers I was somewhat skeptical that I had missed a "cipher" somewhere.

But both times it came up at 17.2mpg. This was all interstate, with speeds that varied from 50-75mph all the way.

This is with (now) 980 miles on the truck.

So far, I have to say I am pleased. This is better than I had expected.



DT

2002 F250 Lariat, White, SC, short bed, 5.4, 6sp, 3.73, 4X4 Off Road, Chrome steps, Tow Mirrors, 6cd, cab lights, 265 OWL AT's

 

[updated:LAST EDITED ON 19-Jun-02 AT 06:19 PM (EST)]I'm happy with my 300/6 about 12-13 in the city, and 18-19 on highway. I use up about a tank every 2 weeks.

 

Well,

Dont feel too bad my F-150 5.4 2x4 at its best gets 10 MPG. In Houston.

 

I wonder how much of this is dependent on the formulation of unleaded in each area, or the emissions equipment on the vehicles? They make it sound like the Dallas/Fort Worth area has a different formula that say the Amarillo area, or the Houston area. I know the formaulation varies for elevation and temperature from one area of the country to another. IE: New York compared to Florida. Just an idea...

 

rjlake..>
yes i get great gas mileage now i just bought the tornado
fuel saver and went from 10 or 11 miles per gal to 18 this thing is easy to install and works great and you will also get a jump in pwer right off the bat i am very happy with it.

 

I was just wondering what a tornado fuel saver is and where I can get one.

 

>I was just wondering what a tornado fuel saver is and where
>I can get one.

Save your fifty dollars for gas, those things do not work