e-fans on 04 and newer 5.4's
Senior Member
Joined: Sep 2000
Posts: 196
Likes: 0
Originally Posted by Crash_edwards
Highway is a huge differance in MPG's. I drive local/highway but unfortunatley a lot of the higway is stop and go traffic here in Dallas during rush hour. At least in the mornings. I try to leave around 4:00 pm to miss the evening rush. Sometimes I make it, sometimes I don't.
If I just drive in the 65 to 70 MPH range without much traffic I can get around 22MPG, but that is because there are no hills in Dallas. I am very pleased with the mileage I am currently getting out of this tank.
If I just drive in the 65 to 70 MPH range without much traffic I can get around 22MPG, but that is because there are no hills in Dallas. I am very pleased with the mileage I am currently getting out of this tank.
Junior Member
Joined: Oct 2005
Posts: 6
Likes: 0
From: Kentucky
Gas Mileage
I have an 05 Reg Cab STX 4X4. Cruise set on 67 mph driving from central to eastern kentucky (through the mountains) I got 19.28 mpg on my last tank of gas. Only mod at that point was the AF1 intake. It made huge power difference for my truck. Since then I have added the Magnaflow exhaust and it seems to have helped power but no milage estimates yet. Can't wait for my program - will it help or hurt gas mileage?
