2018 Chevrolet Impala
US · Large Cars
The 2018 Chevrolet Impala is listed in the US market. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 2.5L 4-cylinder (SIDI), 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV)
- Transmission
- 6-speed automatic
- Drivetrain
- FWD
- Fuel
- Varies by configuration: Gasoline, Flex fuel
- Economy
- 22 mpg (10.7 L/100 km) to 25 mpg (9.4 L/100 km) combined
Key Figures
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 2.5L 4-cylinder (SIDI), 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV) | |
| Displacement | 2.5 L to 3.6 L | |
| Cylinders | 4 to 6 | |
| Fuel type | Varies by configuration: Gasoline, Flex fuel | EPA fueleconomy.gov |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 6 | |
| Drivetrain | FWD | EPA fueleconomy.gov |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 22 mpg (10.7 L/100 km) to 25 mpg (9.4 L/100 km) | EPA fueleconomy.gov |
| City | 18 mpg (13.1 L/100 km) to 22 mpg (10.7 L/100 km) | |
| Highway | 28 mpg (8.4 L/100 km) to 30 mpg (7.8 L/100 km) |
Our sources do not publish these for this vehicle: Aspiration, Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.
Trims and configurations
3 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 1 recall campaign for this model year. Last checked November 10, 2026.
18V576000: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
Remedy: GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006,…
Reported August 30, 2018. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved November 5, 2026 · US Government public data
- NHTSA vPIC · retrieved October 12, 2026 · US Government public data
Source checked: November 5, 2026
Data verified: November 5, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2017 Chevrolet Impala
Varies by configuration: Gasoline, Flex fuel
Varies by configuration: 2.5L 4-cylinder (SIDI), 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV) · FWD
25 mpg (9.4 L/100 km) to 22 mpg (10.7 L/100 km) - 2019 Chevrolet Impala
Varies by configuration: Gasoline, Flex fuel
Varies by configuration: 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV), 2.5L 4-cylinder (SIDI) · FWD
25 mpg (9.4 L/100 km) to 22 mpg (10.7 L/100 km)
Frequently asked questions
What engine does the 2018 Chevrolet Impala have?
Varies by configuration: 2.5L 4-cylinder (SIDI), 3.6L 6-cylinder (SIDI), 3.6L 6-cylinder (SIDI; FFV). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2018 Chevrolet Impala?
Combined fuel economy is 22 mpg (10.7 L/100 km) to 25 mpg (9.4 L/100 km), as published by the source shown in the specification table.
Is the 2018 Chevrolet Impala front-wheel, rear-wheel or all-wheel drive?
Drivetrain: FWD.
Are there recalls for the 2018 Chevrolet Impala?
NHTSA lists 1 recall campaign for this model year (last checked November 10, 2026). Details are in the Recalls section.