2003 GMC Models
- C1500 Sierra 2WD
- C1500 Yukon 2WD
- C1500 Yukon XL 2WD
- Envoy 2WD
- Envoy 4WD
- Envoy XL 2WD
- Envoy XL 4WD
- G15 / 25 Savana 2WD Cargo Convertible
- G1500 / 2500 Savana 2WD Cargo
- G1500 / 2500 Savana 2WD Passenger
- H15 / 25 Savana AWD Cargo Convertible
- H1500 / 2500 Savana Cargo AWD
- H1500 Savana Passenger Van AWD
- Jimmy 2WD
- Jimmy 4WD
- K1500 Sierra 4WD
- K1500 Sierra Denali AWD
- K1500 Yukon 4WD
- K1500 Yukon AWD
- K1500 Yukon XL 4WD
- K1500 Yukon XL AWD
- Safari 2WD Cargo
- Safari 2WD Cargo Convertible
- Safari 2WD Passenger
- Safari AWD Cargo
- Safari AWD Cargo Convertible
- Safari AWD Passenger
- Sonoma 2WD
- Sonoma 4WD
Cargo Vans
The title for most fuel efficient GMC in the cargo vans class in 2003 goes to the GMC Safari 2WD Cargo with a combined EPA fuel economy rating of 19 miles per gallon. This MPG rating is a full 27% better than the worst in class GMC, the H1500 / 2500 Savana Cargo AWD.
- GMC Safari 2WD Cargo
- 19 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC Safari 2WD Cargo Convertible
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC Safari AWD Cargo
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC G1500 / 2500 Savana 2WD Cargo
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC G15 / 25 Savana 2WD Cargo..
- 16 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC Safari AWD Cargo Convertible
- 15 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC H15 / 25 Savana AWD Cargo..
- 15 MPG (Automatic - 5.3L - 8 Cylinder)
- GMC H1500 / 2500 Savana Cargo AWD
- 15 MPG (Automatic - 5.3L - 8 Cylinder)
Passenger Vans
The title for most fuel efficient GMC in the passenger vans class in 2003 goes to the GMC Safari 2WD Passenger with a combined EPA fuel economy rating of 17 miles per gallon. This MPG rating is a full 13% better than the worst in class GMC, the H1500 Savana Passenger Van AWD.
- GMC Safari 2WD Passenger
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC G1500 / 2500 Savana 2WD..
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC Safari AWD Passenger
- 15 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC H1500 Savana Passenger Van AWD
- 15 MPG (Automatic - 5.3L - 8 Cylinder)
Small Pickup Trucks 2WD
The title for most fuel efficient GMC in the small pickup trucks 2wd class in 2003 goes to the GMC Sonoma 2WD with a combined EPA fuel economy rating of 24 miles per gallon. Though this is guaranteed, as it is the only vehicle in this category.
- GMC Sonoma 2WD
- 24 MPG (Manual - 2.2L - 4 Cylinder)
Special Purpose Vehicles - Sport Utility Vehicles 2WD
The title for most fuel efficient GMC in the special purpose vehicles - sport utility vehicles 2wd class in 2003 goes to the GMC Jimmy 2WD with a combined EPA fuel economy rating of 19 miles per gallon. This MPG rating is a full 27% better than the worst in class GMC, the C1500 Yukon XL 2WD.
- GMC Jimmy 2WD
- 19 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC Envoy 2WD
- 18 MPG (Automatic - 4.2L - 6 Cylinder)
- GMC Envoy XL 2WD
- 17 MPG (Automatic - 4.2L - 6 Cylinder)
- GMC C1500 Yukon 2WD
- 16 MPG (Automatic - 4.8L - 8 Cylinder)
- GMC C1500 Yukon XL 2WD
- 15 MPG (Automatic - 5.3L - 8 Cylinder)
Special Purpose Vehicles - Sport Utility Vehicles 4WD
The title for most fuel efficient GMC in the special purpose vehicles - sport utility vehicles 4wd class in 2003 goes to the GMC Envoy 4WD with a combined EPA fuel economy rating of 17 miles per gallon. This MPG rating is a full 6% better than the worst in class GMC, the K1500 Yukon XL AWD.
- GMC Envoy 4WD
- 17 MPG (Automatic - 4.2L - 6 Cylinder)
- GMC Envoy XL 4WD
- 17 MPG (Automatic - 4.2L - 6 Cylinder)
- GMC Jimmy 4WD
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC K1500 Yukon XL 4WD
- 16 MPG (Automatic - 5.3L - 8 Cylinder)
- GMC K1500 Yukon XL AWD
- 16 MPG (Automatic - 5.3L - 8 Cylinder)
Standard Pickup Trucks 2WD
The title for most fuel efficient GMC in the standard pickup trucks 2wd class in 2003 goes to the GMC C1500 Sierra 2WD with a combined EPA fuel economy rating of 17 miles per gallon. Though this is guaranteed, as it is the only vehicle in this category.
- GMC C1500 Sierra 2WD
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
Standard Pickup Trucks 4WD
The title for most fuel efficient GMC in the standard pickup trucks 4wd class in 2003 goes to the GMC Sonoma 4WD with a combined EPA fuel economy rating of 17 miles per gallon. This MPG rating is a full 21% better than the worst in class GMC, the K1500 Sierra Denali AWD.
- GMC Sonoma 4WD
- 17 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC K1500 Sierra 4WD
- 16 MPG (Automatic - 4.3L - 6 Cylinder)
- GMC K1500 Sierra Denali AWD
- 14 MPG (Automatic - 6.0L - 8 Cylinder)
