Jump to content
  • Welcome To Mopar1973Man.Com

    We can see you are lurking about reading the forums and article databases. We happen to be one of the most friendliest Cummins support website on the planet. Come on and register and grab a inexpensive subscription plan. With that you can unlock even more for you. Technical support either by public forum, private support ticket, and even unlock phone support by Mopar1973Man. Mopar1973Man.Com will remain FREE to read forever!

Recommended Posts

Overhead display shows 99.9 miles per gallon every time I start the truck. While driving it settles in around 15 to 20 Mpg. When I accelerate fuel mileage goes up to as much as 22 Mpg, when I am going downhill at 0% throttle mileage decreases to 4-6 MPG.. again increase mileage under hard acceleration decreased mileage when decelerating or going downhill.

Link to post
Share on other sites
  • Create New...