About a year ago my father told me about a group of people he heard about who try to get super high mileage out of their vehicles. I was instantly intrigued. I didnt really follow up on the concept until recently. I read up on as many driving techniques as i could find (found most on ecomodder.com) and i put them to use to the best of my ability. I Didnt really think that my economy was all that spectacular at 36.4MPG on my first tank as a Hypermiler. But as I browsed the garage I noticed that most people were getting between 40% and 60% better than the combined rating. So it became very apparent that my results were rather awesome at nearly 100% increased mileage. I live in a very hilly area too. I have done no modifications to my truck but I have ordered my vac gauge and my electric fan. I really love this truck so i will more than likely keep my major mods to under the hood and synthetic fluids. I may make a bed cover. I think If I try to take it to the next level and get near the 200% or 300% MPG level I will look at a different vehicle. But for now I think thats not too shabby.