I cant agree with diesel and gas jobs maintenance being a wash. From owing both, and watching various fleets changing back over to gas, speaks about overall cost/ownership. Others may not agree and I get it, but newer diesel trucks with the emissions will cost you more in maintenance than a gas job. That's my take, you buy a diesel cause you want to. The load that the OP has can be easily moved by the newer gas engines with 6 speed autos regardless of brand. I'm sure this post will set some fires out there. Its not intended to, but overall cost of ownership, the gas job is cheaper. I have personally been in contact with our fleet manager and that's why a lot of our newer trucks are gas. Even if the engine dies, its always cheaper to replace the gas verse the diesel. Now resale is different. Everyone jumps on the fact that diesels are worth more as you sell them. True, but the rest of the truck will still have issues period. Its all about what you want and what your really willing to take a risk on. Both have advantages/disadvantages like anything else. There is no single cure all in trucks, not one size will fit all. I have pulled with both and choose gas. My parents still have diesel, and one day I may go back to one. But not anytime soon, emission issues and potential fuel issues have simply pushed me away. Good luck on your decision.