That's my only concern right now. Our van gets 8 miles to the gallon (at best) and we'd be driving a little over 1200 miles roundtrip. Price and availability is the ONLY thing that would keep me from going. At 3.50 a gallon that would put me at spending 525 bucks just in gas for the van, not including the 10 gallons of race fuel and 10 gallons of reg for the 450, camping fees, food, etc... I'm playing it by ear right now, the freakin govt needs to get the prices down and the availability up...Over half of Memphis is without gas right now