Different gas mileage in a different state?

No. Your miles/gallons of gas will remain the same. However, you will contribute to a cleaner Virginia environment!

Many states and regions require the use of "oxygenated" fuels, especially in the winter months. The stuff puts out less pollution but will decrease your gas milage by as much as 10%. vbdenny

I have heard that engine at sea level should be tuned differently than an engine at high altitude eg. Denver