I can't believe you ran out of diesel in Austin...come on seriously?
I don't know if I've ever pulled into a station in the last 25 years that didn't sell diesel and that includes trips pretty often to Austin where my girlfriend lives (who lives in an area where she takes public transportion everywhere and even there I just pull in and fuel up on diesel). That includes highway and in town across the southeast and yearly trips out to the mountain west. That's not an exxageration. The only "drawback" to a diesel at the gas station is they might have 24 bays and diesel at 1 and have 1 customer in a buttbeater gas car and he will park in the diesel bay and block 3 trucks from getting diesel.
Even my mom drives a diesel truck and I've never heard her say she had a problem pulling in and getting diesel. I've never even fathomed having to look for it.
The 1 ton diesel is damn near the state vehicle of TX, even in metro areas.
The great thing about truck diesels (no experience with the smaller car diesels) is you get 19mpg with nothing back there and then you hook up a 25' trailer and you get 19mpg and then you hook up a 21' boat and get 19mpg and then hook up a 30' flatbed full of hay and you drop down to 18mpg.
Incredible overkill for most trailers that are shown/built on this site.