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Pontiac Bonneville Gas Mileage (MPG)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Pontiac Bonneville's real-world MPG based on how and where you drive a car.

If you are not a TrueDelta member, you can see only five Pontiac Bonneville MPG gas mileage averages for each powertrain. Log in or join us to see them all.

Pontiac Bonneville Gas Mileage

Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2005 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
flat med light 5 5 10 80 70 27.4
flat med none 3 8 12 77 65 24.1
flat med light 5 5 10 80 65 27.1
2005 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
flat med none 4 6 11 79 67 26.2
  Averages flat med none 4 6 11 79 67 26.2
With the 205-horsepower 3.8L V6 engine, 4-speed automatic transmission, and front-wheel drive, 2005 Pontiac Bonneville fuel economy has been averaging 26.2 MPG (miles per gallon).

The 2005 Pontiac Bonnevilles in this analysis were driven mostly on the highway at an average speed of 67 miles per hour (about 79 percent of the miles driven). The rest of the miles were in the suburbs (11 percent), in the city (6 percent), and in heavy traffic (4 percent).

In addition the average 2005 Pontiac Bonneville in this analysis was driven on flat terrain with a medium foot and the AC not used at all.
 
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2004 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
flat light light 10 30 40 20 75 27.3
flat light none 0 2 5 93 65 29.0
2004 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
flat light light 5 16 23 57 70 28.2
  Averages flat light light 5 16 23 57 70 28.2
With the 205-horsepower 3.8L V6 engine, 4-speed automatic transmission, and front-wheel drive, the 2004 Pontiac Bonneville has been averaging 28.2 MPG (miles per gallon).

The 2004 Pontiac Bonnevilles in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 57 percent of the miles driven). The rest of the miles were in the suburbs (23 percent), in the city (16 percent), and in heavy traffic (5 percent).

In addition the average 2004 Pontiac Bonneville in this analysis was driven on flat terrain with a light foot and the AC on only some of the time.
 
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2003 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD
flat med light 10 20 60 10 60 22.0
flat light none 10 20 60 10 60 22.0
2003 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD
flat med light 10 20 60 10 60 22.0
  Averages flat med light 10 20 60 10 60 22.0
With the supercharged 240hp 3.8L V6 engine, 4-speed automatic transmission, and front-wheel drive, 2003 Pontiac Bonneville gas mileage has been averaging 22.0 MPG (miles per gallon).

The 2003 Pontiac Bonnevilles in this analysis were driven mostly in the suburbs (about 60 percent of the miles driven). The rest of the miles were in the city (20 percent), in heavy traffic (10 percent), and on the highway at an average speed of 60 miles per hour (10 percent).

In addition the average 2003 Pontiac Bonneville in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.
 
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd MPG
2002 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
hills med light 5 0 0 95 80 30.0
2002 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
hills med light 5 0 0 95 80 30.0
  Averages hills med light 5 0 0 95 80 30.0
With the 205-horsepower 3.8L V6 engine, 4-speed automatic transmission, and front-wheel drive, 2002 Pontiac Bonneville fuel economy has been averaging 30.0 MPG (miles per gallon).

The 2002 Pontiac Bonnevilles in this analysis were driven mostly on the highway at an average speed of 80 miles per hour (about 95 percent of the miles driven). The rest of the miles were in heavy traffic (5 percent), in the suburbs (0 percent), and in the city (0 percent).

In addition the average 2002 Pontiac Bonneville in this analysis was driven on hilly terrain with a medium foot and the AC on only some of the time.

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If you are not a TrueDelta member, you can see only five Pontiac Bonneville MPG fuel economy averages for each powertrain. Log in or join us to see them all.

 

What Our Members Are Saying about the Real Pontiac Bonneville MPG

Pontiac Bonneville Fuel Economy: Pros
YearBody/PowertrainComment
2003 4dr Sedan supercharged 240hp 3.8L V6
4-speed automatic FWD
supercharged motor and gets 30 mpg on highway.
Pontiac Bonneville Fuel Economy: Cons
YearBody/PowertrainComment
2005 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
Not good in city
2001 4dr Sedan 205-horsepower 3.8L V6
4-speed automatic FWD
Awful, awful gas mileage. I drove this car for three years in England and the cost of operating this car was a NIGHTMARE.