This truck has been amazing. I paid $2500 for it almost 12 years ago; it had 76k original miles on it!!! I have since put about 80k. She gets 15mpg with the stock 345. The only thing I have modified are the electronic ignition and the exhaust and no doubt a K&N. I pull brand new 4X4's and even a hummer out of the snow in Tahoe all the time.