Aug 17, 2013
>I have a feeling 43 mpg is still high.< The EPA got a C-MAX and repeated the test themselves. That's the number Ford is putting on the sticker. On the other hand, a real-world driver probably won't get 43 MPG as the EPA conducts their tests on a laboratory reference fuel that contains no ethanol. Fuels back when the EPA started reporting CAFE numbers didn't contain ethanol, so the laboratory reference fuel doesn't contain ethanol. Also, the drive cycles have very gentle accelerations and decelerations, perfect for a hybrid to report high mileage. They are supposed to account for the state of charge of the high voltage battery so that it doesn't charge or discharge appreciably during the test sequences.