2005 Pontiac Grand Prix 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 Grand Prix's real-world MPG based on how and where you drive a car.
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Pontiac Grand Prix
Pontiac Grand Prix 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 supercharged 260hp 3.8L V6 4-speed automatic FWD |
hills | med | hvy | 0 | 0 | 5 | 95 | 70 | 28.0 |
| flat | med | hvy | 0 | 0 | 5 | 95 | 70 | 28.0 | ||
| 2005 | 4dr Sedan supercharged 260hp 3.8L V6 4-speed automatic FWD |
hills | med | hvy | 0 | 0 | 5 | 95 | 70 | 28.0 |
| Averages | hills | med | hvy | 0 | 0 | 5 | 95 | 70 | 28.0 | |
| With the supercharged 260hp 3.8L V6 engine, 4-speed automatic transmission, and front-wheel drive, 2005 Pontiac Grand Prix fuel economy has been averaging
28.0 MPG (miles per gallon). The 2005 Pontiac Grand Prixs in this analysis were driven mostly on the highway at an average speed of 70 miles per hour (about 95 percent of the miles driven). The rest of the miles were in the suburbs (5 percent), in heavy traffic (0 percent), and in the city (0 percent). In addition the average 2005 Pontiac Grand Prix in this analysis was driven on hilly terrain with a medium foot and the AC on most or all of the time. |
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| 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 303-horsepower 5.3L V8 4-speed shiftable automatic FWD |
flat | lead | none | 0 | 15 | 30 | 55 | 60 | 16.0 |
| flat | lead | none | 0 | 15 | 30 | 55 | 60 | 19.1 | ||
| hills | light | light | 15 | 50 | 35 | 0 | N/A | 18.6 | ||
| flat | med | none | 10 | 15 | 65 | 10 | 60 | 18.1 | ||
| hills | lead | none | 10 | 20 | 65 | 5 | 70 | 17.2 | ||
| 2005 | 4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD |
flat | med | none | 7 | 23 | 45 | 25 | 63 | 17.8 |
| Averages | flat | med | none | 7 | 23 | 45 | 25 | 63 | 17.8 | |
| With the 303-horsepower 5.3L V8 engine, 4-speed shiftable automatic transmission, and front-wheel drive, the 2005 Pontiac Grand Prix has been averaging
17.8 MPG (miles per gallon). The 2005 Pontiac Grand Prixs in this analysis were driven mostly in the suburbs (about 45 percent of the miles driven). The rest of the miles were on the highway at an average speed of 63 miles per hour (25 percent), in the city (23 percent), and in heavy traffic (7 percent). In addition the average 2005 Pontiac Grand Prix in this analysis was driven on flat terrain with a medium foot and the AC not used at all. |
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| 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 200-horsepower 3.8L V6 4-speed automatic FWD |
hills | light | none | 0 | 15 | 15 | 70 | 65 | 21.5 |
| flat | light | none | 30 | 20 | 20 | 30 | 70 | 23.0 | ||
| flat | med | light | 5 | 35 | 10 | 50 | 60 | 24.5 | ||
| flat | v.lt | light | 11 | 17 | 56 | 17 | 70 | 25.0 | ||
| hills | med | light | 0 | 15 | 15 | 70 | 65 | 25.6 | ||
| 2005 | 4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD |
flat | light | none | 9 | 20 | 23 | 47 | 66 | 23.9 |
| Averages | flat | light | none | 9 | 20 | 23 | 47 | 66 | 23.9 | |
| With the 200-horsepower 3.8L V6 engine, 4-speed automatic transmission, and front-wheel drive, 2005 Pontiac Grand Prix gas mileage has been averaging
23.9 MPG (miles per gallon). The 2005 Pontiac Grand Prixs in this analysis were driven mostly on the highway at an average speed of 66 miles per hour (about 47 percent of the miles driven). The rest of the miles were in the suburbs (23 percent), in the city (20 percent), and in heavy traffic (9 percent). In addition the average 2005 Pontiac Grand Prix in this analysis was driven on flat terrain with a light foot and the AC not used at all. |
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What Our Members Are Saying about the Real 2005 Pontiac Grand Prix MPG
| 2005 Pontiac Grand Prix Fuel Economy: Pros | ||
| Year | Body/Powertrain | Comment |
| 2005 | 4dr Sedan 200-horsepower 3.8L V6 4-speed automatic FWD |
Thus far, I have averaged 23 and 26 mpg, both times have had roughly a 70 mile highway trip out of 200 miles. Overall, I find this to be acceptable. |
| 2005 Pontiac Grand Prix Fuel Economy: Cons | ||
| Year | Body/Powertrain | Comment |
| 2005 | 4dr Sedan 303-horsepower 5.3L V8 4-speed shiftable automatic FWD |
17-19 mpg in the city. 25 If I drive on the intersate. 30 is possible at 60mph. Most of my driving is in the city. The beautiful v8 makes it impossible to stay out of the gas, but it can run on REG fuel. |
