I'm almost at 2000 miles and I'm averaging about 24-26 MPG (combo of city and highway). While it is less than what was claimed, I'm happy since I'm driving a big, honking, 4-wheel drive, 6 cyl SUV and i'm getting the same gas milage I got in my little crappy Honda Accord. Also, I have to say that the worst gas milage I've averaged so far was the time I had to get premium gas in the car (the station was out of regular) that time I only got 20 mpg. when I went back to regular, it went back up to 24. weird huh?