03 chevy 1500, 4.8 with cal speed and performance engine and trans dyno tune, 4l65e tranny, 35's with 4.88's, avg. 16 mpg, and 12mpg towing.  i thought about getting a diesel, but the cost of maintenence and the amounting of towing i do(about 5-6 times per year), i couldn't justify it.  diesels are nice though if you can afford them.