My first review was in May @ 1000 miles. In September did a long haul tour (26 states and Canada). Overall in all kinds of driving conditions we averaged 33+ MPG (city, mountains, heavy traffic, open road). I have a JPEG foto of the Nav Information Screen; 9/22-9/22 Trip - 480miles Elapsed Time - 6:27 Average Fuel Consumption - 38.7 MPG Average Speed - 74.6 MPH Nav sys is fine for working around unfamiliar metro areas. When you have local knowledge you see that many suggested routes are crude, round about, and just plain wrong. Lot of out-dated data in the NAV database. Local post office moved 10 years ago but still in old location.