The new 7.3 gas ford , I believe I found my new welding rig . I test drove all three engines in the 1ton, the 6.7 power stroke is truly a beast , but at 10,000$ more & maintenance being so high I just dont need it .I currently have a '14 f250 with the 6.2 & at 200,000 + it's been a very reliable truck & pulls my camper just fine . In the test drive, according to the dash the 7.3 was getting the best mpg & had more than enough power , just nervous about a 1st gen engine.