I just put 600 plus miles on the VX this past weekend with a trip to Twenty-Nine Palms and through Joshua Tree National Park and around the Salton Sea.

My mileage went from 13.5 to an average of 20 mpg -- much of it with the air conditioner on.

What did I do differently? I increased the tire pressure from 32 to 34 psi. Original wheels and tires. Amazing.