Chevrolet
Impala Bi-Fuel (CNG)
U.S. fuel economy and specifications from the EPA.
20Best combined MPG2015 model year
2015–2016Model years2 with EPA ratings
2Rated configurationsDrive, transmission and engine
3.6 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
2015 20 MPG
2016 20 MPG
1 configuration.
Front-Wheel Drive · Automatic (S6)
Regular gasoline or natural gas · Midsize Cars
- Combined MPG on regular gasoline
- 20
- Combined MPG on natural gas
- 19
- Engine displacement
- 3.6 L
- Cylinders
- 6
Front-Wheel Drive · Automatic (S6)
Regular gasoline or natural gas · Midsize Cars
- Combined MPG on regular gasoline
- 20
- Combined MPG on natural gas
- 19
- Engine displacement
- 3.6 L
- Cylinders
- 6