Aircraft are now on the market with diesel engines. One of them is a twin engine certified.

We just traded in our 02 Silverado 1/2 ton in and got an 05 GMC 3/4 ton Diesel. Couldn't be happier with the trade. Went from a Club Cab to a Crew Cab. We're hoping that this will be the last pick up we have to purchase.....for a long, long time, anyway. ;-)

I have a 06 Chevy 25000 crew cab Duramax and I really like it. I just wish diesel fuel was cheaper atleast no higher that gasoline. I also hope it last me a long time.
Tom