I'll be taking advantage of my area's mid 70's, low 80's weather over the next couple of days, as I try to squeak 35-mpg or more out of the diesel Jeep Liberty on a road trip. Without A/C dragging the mighty little 2.8L down, maximum air pressure in the tires, and driving the speed limit, I should be able to at least replicate the Jeep's best-ever 34.15 mpg run. We'll see...