 Purchased car used with 17K miles from dealer.  Reading was 20.1 mpg, drove it home and mpg began to drop immediately.  Went as low as 12.8 but then had problem with 02 sensor.  Dealer said that mileage would improve after replacement. It got a little better, now back up to 15.1, city.On trips to Tahoe the best mpg was 18.   Overall, I like the car but given the times, one can't make buying decisions on cars w/o taking mpg into account.  I would never have bought this car if I'd known what the true mileage would be.  I think that all of the disclaimers given by both the dealers and the feds are outrageous.  A consumer should be entitled to minimal expectations for such a critical feature.