Gas mileage on 2003 Chevy Impala?

The gas mileage for a 2003 Chevy Impala varies significantly depending on the engine type and driving conditions. There wasn't a single engine offered that year. You'll find different mileage ratings depending on the source and specifics of the vehicle.

Generally, expect:

* Around 18-22 mpg combined (city and highway) for the V6 engine. This is a common range cited in many sources.

* Possibly slightly lower mpg for the V8 engine. The V8 will likely get lower fuel economy in city driving.

To find a more precise estimate for *your* specific 2003 Chevy Impala, you should:

* Check the sticker inside the driver's side doorjamb. This often shows the original EPA estimated fuel economy.

* Consult the owner's manual. This will also provide fuel economy information.

* Use online resources like fueleconomy.gov (in the US). You can search by year, make, and model to find reported mileage from other owners. Keep in mind that individual results may vary.

Keep in mind that actual gas mileage will depend on driving habits (aggressive acceleration, frequent braking, etc.), vehicle condition, and terrain.