I like your post Petrol. I think the numbers you gave were correct too. I'm happy with the 6.8 for my needs. It does a great job when pulling a trailer and has plenty of power for me. I'm sure a diesel would get better fuel milage, but as mentioned, a diesel costs more to maintain and more upfront and the cost of diesel has gotten to be higher than gas. It's all up to your preference. I think the 6.0 diesel would be great if you are planning on towing a heavy load a lot of the time and needed all the power. It is really hard to compare a gas to a diesel though since they are built for different kinds of power. If you get a 6.8 V10 I really don't think you would be disappointed. Oh yeah, I usually get 12-13 mpg and that is just short 7 mile trips maybe on gravel roads, and have gotten as high as 16 before, so the V10 does reasonable for fuel milage for the power it provides.