Im waiting to get mytruck in for service for over a month. The dealer is really busy and short on loaners. This is starting to give me time go think about the 6.2L. My 6.7L has something wrong that causes it to run noisy, marble-knocking, pinging, rattling any time i drive it. Fuel economy has dumpedto 14-14.5mpg. I really only need the smoker for pulling our 10,000 lb. Travel trailer 12x a year. Even if the 6.2L only nets 13mpg for me, its only$700 additional a year for gas. Thats a far cry fron $8000 for the smoker. Kind of chicken to order one without driving one. And as a daily driver, im not sure what to expect.