2003 Buick Regal: 3.8L · FWD · 4-speed automatic
One configuration of the 2003 Buick Regal as listed by our sources. Every figure below carries its source.
| Specification | Value | Source |
|---|---|---|
| Engine | 3.8L 6-cylinder | EPA fueleconomy.gov |
| Displacement | 3.8 L | EPA fueleconomy.gov |
| Cylinders | 6 | EPA fueleconomy.gov |
| Fuel type | Gasoline | EPA fueleconomy.gov |
| Transmission | 4-speed automatic | EPA fueleconomy.gov |
| Drivetrain | FWD | EPA fueleconomy.gov |
| Combined economy | 20 mpg (11.8 L/100 km) | EPA fueleconomy.gov |
| City economy | 17 mpg (13.8 L/100 km) | EPA fueleconomy.gov |
| Highway economy | 27 mpg (8.7 L/100 km) | EPA fueleconomy.gov |
Provenance & verification
- EPA fueleconomy.gov · US Government public data
Source checked: October 17, 2026
Data verified: October 18, 2026