You don't buy a diesel f250 because you think it is a smaller C12.
You don't expect 1.2mm miles and are disappointed at 350k.
You buy it because it's better than what's available in the same chassis but with gas power. It lasts longer than that 351W or 5.4 Triton. You put 300k on it, hard and still have something compared to the gas peers at the same mileage.
Average mpg isn't the only way to calculate ROI when comparing diesel vs gas in sub class 4 trucks.
Cost per mile...the ONLY number that matters in the business world.
I deliberately didn't mention UPS, 108,000 package vehicles operating a day. Their cost per mile numbers are good solid data. Locally, UPS is using 2007 F250 4x4, 6.2L gassers. The one on my route has 560,000 on the odometer. The driver is a close friend, he got the current pickup with 320,000 on it, it is up to 560k now, no breakdowns, routine maintenance. Every day it goes about 220 miles, from 2,600 ft elev to 5,100 ft, to 3,000 ft, to 6,000 ft to 1,100 ft, to 5,900 ft, to 3,000 ft back to 2,600 ft at the barn. If UPS could save a penny a mile, they would run diesel, but they don't. And not to mention the famous "Hot Trucks" running oilfield service are little 4.7L Toyota gassers with over a million miles each.
What you WANT...trumps all, but cost per mile? Gassers, the clear winner.
