I own a 75 f250 highboy that runs great and i have no problems with it but there is a light on the dash saying low fuel economy. i have no idea what it means accept for the fuel economy obviously but the fuel isn't bad. pleas tell me how to turn it off or what it means and how to fix it. the only thing i can think of is that it is lifted with large tires so the fuel economy isn't what it originally was. thanks

 

You can remove and fix that is the only option as far as my concern.