MENU
1 0 3 4 3 4

We are 103,000+ car owners sharing real-world car information.

Join Us

Pontiac Grand Prix MPG

MPG Number of Vehicles
16 miles per gallon 1 vehicles
17 miles per gallon 2 vehicles
18 miles per gallon 1 vehicles
19 miles per gallon 3 vehicles
20 miles per gallon 0 vehicles
21 miles per gallon 0 vehicles
22 miles per gallon 2 vehicles
23 miles per gallon 1 vehicles
24 miles per gallon 0 vehicles
25 miles per gallon 2 vehicles
26 miles per gallon 1 vehicles
27 miles per gallon 0 vehicles
28 miles per gallon 2 vehicles
Model Year Body/Powertrain MPG  
2005 2005 4dr Sedan 303-hp 5.3L V8 4-sp shiftable automatic FWD 17.89
See all data
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 17.89 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 25 percent of the miles driven). The rest of the miles were in the city (22.9 percent), in heavy traffic (7.1 percent), and in the suburbs (0 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.
2005 2005 4dr Sedan supercharged 260hp 3.8L V6 4-sp automatic FWD 28
See all data
2005 2005 4dr Sedan 200-hp 3.8L V6 4-sp automatic FWD 23.55
See all data

Return to top

What Our Members Are Saying about the Real Gas Mileage of the 2005 Pontiac Grand Prix

2005 Pontiac Grand Prix Real Gas Mileage: Pros
YearBody/PowertrainComment
2006 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 Good for a speedy V6 and a huge car. see full Pontiac Grand Prix review
2006 4dr Sedan 200-horsepower 3.8L V6
4-speed automatic FWD		 it was listed as being better than the impalla see full Pontiac Grand Prix review
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. see full Pontiac Grand Prix review
2005 Pontiac Grand Prix Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Sedan 303-horsepower 5.3L V8
4-speed shiftable automatic FWD		 Great V8 exhaust note and instant acceleration comes at the cost of about 19 mpg in combined driving, versus 25 with my new car. That is a 30% increase. (the new car is 600 pounds lighter though...) see full Pontiac Grand Prix review
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. see full Pontiac Grand Prix review
 

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.