Setting Cruise Control by MPG rather than MPH Okay the way I do it is turn your screen to the one with the picture of the engine and motor. At the bottom of the screen you will have a MPG and usage number. Adjust your driving to a decent level and set the Cruise Control. This is actually setting to a set speed, but if it is a speed that you are getting good MPG at, the computer will try to keep your speed at that level. you will find on long stretches it will keep at your desired MPG. Works fairly well out here in the desert.
