mattcraighead

I am going today to buy a 1999 Ford F-150 4x4 Extended Cab With a 5.4 Auto. It currently has a dual exhaust and other than that it is stock. What kind of fuel mileage can I expect on country roads?

Also, what can I do to help increase the mileage most? What mods equal how much gain? Any help will be appreciated. Thanks.

Troupe

do you have a heavy foot?

mattcraighead

At times lol. Im going to be going to college and will be money conscious so I'm going to try to keep my foot out of it.

And I like your sig quote "Fermers- Bustin ours to feed yours" I'm A Farmer Too And Proud Of It.

kingbrian

well i dont know how much help it will be but my 97 SCab 4x4 with the 4.6 with an exhaust gutted rear cats and K&N drop in filter was getting 12.5 at first.... effin terrible right? well then i did the gotts mod and i pulled like 14.2ish. this is varied driving i drive easy as i can but one way of my commute is downhill with a back wind and the other is all very very uphill and with 60+ mph head wind. with ac full blast of course.. if i keep the RPM's below 2000 while cruising it makes a huge difference.. just hard to do on my drive.

Troupe

on mine i have the 5.4 and if i drive like 55 - 60 ill get around 17-18 on the highway and if im hauling arshe ill get around 12 or 13

kingbrian

damn, what year?

Troupe

2001 scab 4x4 with 33 inch mud grapplers on it

BuckandWalleyeguy

I just got back from an up noth trip. 300 miles round trip. I have an 01' 5.4 Liter with 143,000 on it. I still got 17-18 miles to the gallon. She still runs like a top.

blazinrebel

as long as the added horsepower doesnt make ur foot any heavier a cold air intake and a performance chip to go with that exhaust could improve gas mileage. also i would use sea foam in ur oil and gas tank but make sur to replace the oil and oil filter and also the fuel filter

06BRUTEFORCE

I have the same truck, and i get about 13. What have you done to make it better?