2004 Buick Models
Large Cars
The title for most fuel efficient Buick in the large cars class in 2004 goes to the Buick Lesabre with a combined EPA fuel economy rating of 23 miles per gallon.
- Buick Lesabre
- 23 MPG (Automatic - 3.8L - 6 Cylinder)
- Buick Park Avenue
- 23 MPG (Automatic - 3.8L - 6 Cylinder)
Midsize Cars
The title for most fuel efficient Buick in the midsize cars class in 2004 goes to the Buick Century with a combined EPA fuel economy rating of 24 miles per gallon.
- Buick Century
- 24 MPG (Automatic - 3.1L - 6 Cylinder)
- Buick Regal
- 24 MPG (Automatic - 3.8L - 6 Cylinder)
Special Purpose Vehicles - Sport Utility Vehicles 2WD
The title for most fuel efficient Buick in the special purpose vehicles - sport utility vehicles 2wd class in 2004 goes to the Buick Rendezvous FWD with a combined EPA fuel economy rating of 22 miles per gallon. This MPG rating is a full 22% better than the worst in class Buick, the Rainier 2WD.
- Buick Rendezvous FWD
- 22 MPG (Automatic - 3.4L - 6 Cylinder)
- Buick Rainier 2WD
- 18 MPG (Automatic - 4.2L - 6 Cylinder)
Special Purpose Vehicles - Sport Utility Vehicles 4WD
The title for most fuel efficient Buick in the special purpose vehicles - sport utility vehicles 4wd class in 2004 goes to the Buick Rendezvous AWD with a combined EPA fuel economy rating of 20 miles per gallon. This MPG rating is a full 18% better than the worst in class Buick, the Rainier AWD.
- Buick Rendezvous AWD
- 20 MPG (Automatic - 3.4L - 6 Cylinder)
- Buick Rainier AWD
- 17 MPG (Automatic - 4.2L - 6 Cylinder)