Gas Mileage

2003 Buick Regal

Research and compare gas mileage for the 2003 Buick Regal

2003 Buick Models

  1. Century
  2. Lesabre
  3. Park Avenue
  4. Regal
  5. Rendezvous AWD
  6. Rendezvous FWD
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There is more than one version of this model which have different gas mileage rates. You may select a version below to jump to that section:

Technical Brief (Automatic - 3.8L - 6 Cylinder - Super Charged)

Gas Mileage (EPA Estimated)

The figures below show what the EPA estimates drivers will experience for fuel economy in "real world" driving situations. This version of the Regal gets up to 27 MPG on the highway, 17 MPG under city driving conditions, and an estimated combined rating of 21 MPG. Highway fuel economy is a full 59% better than city fuel economy.

Highway
27 MPG
Combined
21 MPG
City
17 MPG

Engine

Cylinders:
6
Valves Per Cylinder:
2
Displacement:
3.8 Liters
Guzzler:
No
Turbo:
No
Supercharged:
Yes
Fuel Type:
Premium

Gas Mileage (EPA Unadjusted)

The figures below show what the EPA observed for fuel economy in labratory tests. These mileages are not typical of "real world" driving fuel economy. In the lab, this version of the Regal gets up to 34.40 MPG on the highway, 19.43 MPG under city driving conditions, and an estimated combined rating of 24.16 MPG. Labratory highway fuel economy is a full 77% better than city fuel economy.

Highway
34.40 MPG
Combined
24.16 MPG
City
19.43 MPG

Transmission

Type:
Automatic
Sub Type:
L4

Miscellaneous

Drive System:
Front Wheel Drive
Passenger Volume (4 Door):
102 Cubic Feet
Luggage Volume (4 Door):
17 Cubic Feet

Technical Brief (Automatic - 3.8L - 6 Cylinder)

Gas Mileage (EPA Estimated)

The figures below show what the EPA estimates drivers will experience for fuel economy in "real world" driving situations. This version of the Regal gets up to 29 MPG on the highway, 19 MPG under city driving conditions, and an estimated combined rating of 23 MPG. Highway fuel economy is a full 53% better than city fuel economy.

Highway
29 MPG
Combined
23 MPG
City
19 MPG

Engine

Cylinders:
6
Valves Per Cylinder:
2
Displacement:
3.8 Liters
Guzzler:
No
Turbo:
No
Supercharged:
No
Fuel Type:
Regular

Gas Mileage (EPA Unadjusted)

The figures below show what the EPA observed for fuel economy in labratory tests. These mileages are not typical of "real world" driving fuel economy. In the lab, this version of the Regal gets up to 37.40 MPG on the highway, 21.40 MPG under city driving conditions, and an estimated combined rating of 26.50 MPG. Labratory highway fuel economy is a full 75% better than city fuel economy.

Highway
37.40 MPG
Combined
26.50 MPG
City
21.40 MPG

Transmission

Type:
Automatic
Sub Type:
L4

Miscellaneous

Drive System:
Front Wheel Drive
Passenger Volume (4 Door):
102 Cubic Feet
Luggage Volume (4 Door):
17 Cubic Feet

Comparisions

2003 Midsize Cars

The title for most fuel efficient vehicle in the midsize cars class in 2003 goes to the Honda Accord with a combined EPA fuel economy rating of 29 miles per gallon. This MPG rating is a full 142% better than the worst in class vehicle, the Bentley Bentley Arnage.

Honda Accord
29 MPG (Manual - 2.4L - 4 Cylinder)
Mazda Mazda 6
28 MPG (Manual - 2.3L - 4 Cylinder)
Toyota Camry
27 MPG (Automatic - 2.4L - 4 Cylinder)
Buick Regal
23 MPG (Automatic - 3.8L - 6 Cylinder)
Audi A6
23 MPG (Automatic - 3.0L - 6 Cylinder)
Lincoln Mercury LS
23 MPG (Automatic - 3.0L - 6 Cylinder)
Volvo S80 / S80 Executive
23 MPG (Automatic - 2.9L - 6 Cylinder)
Audi S8
18 MPG (Automatic - 4.2L - 8 Cylinder)
Jaguar Super V8
18 MPG (Automatic - 4.0L - 8 Cylinder)
Bentley Bentley Arnage
12 MPG (Automatic - 6.8L - 8 Cylinder)
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