2013 Hyundai Elantra Coupe SE PZEV 2dr Coupe (1.8L 4cyl 6A)
My Elantra has 20,000 miles on it. I am pretty satisfied with it. I drive mostly highway miles 60-65 mph about 25 miles each way with ECO on. I get between 33-36 miles mpg. However the readout of mpg is consistently almost exactly 10% above what I get. I believe it is designed this way to get you to think it is doing better than it really is. I wonder if this is causing some of the disagreement on mileage (shown gas mileage versus actual. I wonder what other owners are seeing.