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Pontiac Grand Prix Fuel Economy (km/L)

km/L Number of Vehicles
38 kilometers per liter 1 vehicles
39 kilometers per liter 0 vehicles
40 kilometers per liter 1 vehicles
41 kilometers per liter 1 vehicles
42 kilometers per liter 0 vehicles
43 kilometers per liter 1 vehicles
44 kilometers per liter 1 vehicles
45 kilometers per liter 2 vehicles
46 kilometers per liter 0 vehicles
47 kilometers per liter 0 vehicles
48 kilometers per liter 0 vehicles
49 kilometers per liter 0 vehicles
50 kilometers per liter 0 vehicles
51 kilometers per liter 2 vehicles
52 kilometers per liter 0 vehicles
53 kilometers per liter 0 vehicles
54 kilometers per liter 1 vehicles
55 kilometers per liter 0 vehicles
56 kilometers per liter 0 vehicles
57 kilometers per liter 0 vehicles
58 kilometers per liter 1 vehicles
59 kilometers per liter 1 vehicles
60 kilometers per liter 1 vehicles
61 kilometers per liter 0 vehicles
62 kilometers per liter 0 vehicles
63 kilometers per liter 0 vehicles
64 kilometers per liter 0 vehicles
65 kilometers per liter 0 vehicles
66 kilometers per liter 2 vehicles
Model Year Body/Powertrain km/L  
2005 2005 4dr Sedan 303-hp 5.3L V8 4-sp shiftable automatic FWD 42.06
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With the 226 kilowatts 5.3L V8 engine, 4-speed shiftable automatic transmission, and front-wheel drive, the 2005 Pontiac Grand Prix has been averaging 42.06 L/100km (liters per 100 kilometers).

The 2005 Pontiac Grand Prixs in this analysis were driven mostly on the highway at an average speed of 66 kilometers per hour (about 25 percent of the kilometers driven). The rest of the kilometers 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 65.9
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2005 2005 4dr Sedan 200-hp 3.8L V6 4-sp automatic FWD 55.4
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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 (km/L)

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 km/L based on how and where you drive a car.