Hi. I am thinking of getting an f250 reg cab but I am undecided on the engines. I want the diesel but really dont need it, I would be getting it more for power and reliability reasons. I have no idea on how the 5.4 and the 6.8 would last atleast 170k miles with no major problems. A guy on my jobs site does tile floors has a reg cab 5.4 auto with 133k miles and loves it, says he has plenty of power, and has had no problems at all and does alot of hauling(tiles, saws,etc). We have the 6.8 in a bucket truck at work(f550) and it sounds like it is ready to croke and it has 600 miles on it, I could not listen to that everyday. Could anyone help me as to which engine is a good choice?Oh I would probably be adding a supercharger to the 5.4 for more power in the future.And if I got either of the gassers I would get a 4.30 gear ratio.Any help?Thanks.