I am new to this site and I am looking forward to trying some of the hypermiling techniques! I am driving a 2001 Civic 2DR EX 5SP and have been AVERAGING 42mpg and excess of 475 miles on a tank of gas! AND THIS CAR HAS 170,000+ MILES ON IT!!! I travel 110 miles round-trip to work everyday, most of which is highway(65mph). I am trying to achieve an average of 50mpg which is proving difficult because of the highway speeds I travel. I generally drive within 1 mph of the speed limit(65) on the highway to avoid getting run over. If they lowered the speed limit to 55 I am sure 50 mpg would be easier to achieve. I am inspired by the mileage that other people are getting on this site with similar vehicles.