[hampsterzone]

I have wondered the same exact thing! I use to think I got great mileage going off my edge evolution until I did the miles to gallons ratio and found it to be off, much like you are seeing. Increase your mileage by using premium fuel and driving so your rpms are below 1,900. Limit idling also helps. Running fully synthetic oil, new fuel filter, and having your fuel injection system cleaned by a professional helps. If it is a good place they clean everything plus add cleaner to your fuel. I have done this and I am very pleased with the results. Costs more at first but in the end your truck runs better and you will see an improvement in mileage. Good luck!