Majek Texas Slam
I have several friends running tunes and some say it increased about 1-3 miles per gallon. I can live with the MPG as it is.
This is it. The EB is a half ton truck that tows like a beast and gets reasonably good gas mileage for its given capabilities. Also, I find it a joy to drive. Much faster than any other truck I have owned. If gas mileage is your main priority, there may be better options. Still, some do see the 20+ mpg so it is possible depending on driving style and the gearing. That said, I get 15-16 mpg in mixed driving which compares to the 12-13 mpg I got out my '04 F150 with the 5.4.Most people make the mistake of thinking the EB is about gas mileage. It's really about power.