I think the advantage of the diesel comes in the resale of higher mileage trucks. Reasonable mileage and the gasser will hold it's own. When you're pushing 200,000 or better, the gasser value is gonna drop way more dramatically than the diesel. You stand a better chance at much of the worn parts or problems having been taken care of in the deisels lifetime. No way I'd be looking at a gas engine with that many miles. Even with the vehicles I've taken good care of, it'll probably start wanting to puke sensor replacements, and other fuel related issues. I use to drive 40,000 miles a year, commuting. Even with timely oil changes and fresh tanks of gas, the engine oil is gonna smell like fuel when you get up there. That said, I bought a gasser. These days I live within biking, walking distance of my work. Most of my driving is going to be recreational with some boat towing. The extra couple of miles per gallon for higher prices diesel, will not pay off for me. This truck will tow the boat much better than a 1500, when I need it. But the gas mileage is already looking slightly better than when I bought it. 2500 CC w/ 6.6 gas.