The gas mileage on this car is horrific. The EPA is 19/23 but thus far we have had no tank higher than 13 MPG and our average is 12.8 MPG. I took the car to the dealer and they said that "the gas mileage on the RDX isn't great". Wow is that an understatement. If I had known that the mileage would be this bad I would never have purchased this car. The car is great otherwise, but it only takes premium gasoline and the gas costs are now more than double my prior car (a V6 Honda Accord). I am really disappointed that Acura put this car out with such bad gas mileage and there's no way out now, I estimate that my additional annual gas costs will be about $2500 per year, which is insane.
Handling, dash, power over 2000 RPM, fit and finish.
The gas mileage is so bad. I have never had a car that was this gasoline inefficient. The additional expense incurred is atrocious. I don't think it will get any better. The break-in period might be responsible for 1-2 MPG, but not 8MPG. The gas cost for this inefficient beast is astronomical.