However, generally speaking, you can expect EPA estimates to be in the range of:
* Around 18-22 mpg city and 28-30 mpg highway for the smaller engines.
* Lower MPG for the larger V6 engines, likely in the low teens for city driving and mid-twenties for highway.
To find the exact MPG for your specific 2012 Chevy Impala, check the sticker on the driver's side doorjamb or consult the owner's manual. You can also search online using the specific engine displacement.