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Infiniti G Fuel Economy (km/L)

km/L Number of Vehicles
5 kilometers per liter 1 vehicles
6 kilometers per liter 0 vehicles
7 kilometers per liter 3 vehicles
8 kilometers per liter 5 vehicles
9 kilometers per liter 0 vehicles
10 kilometers per liter 1 vehicles
11 kilometers per liter 2 vehicles
12 kilometers per liter 0 vehicles
13 kilometers per liter 0 vehicles
14 kilometers per liter 0 vehicles
15 kilometers per liter 0 vehicles
16 kilometers per liter 0 vehicles
17 kilometers per liter 0 vehicles
18 kilometers per liter 0 vehicles
19 kilometers per liter 0 vehicles
20 kilometers per liter 0 vehicles
21 kilometers per liter 0 vehicles
22 kilometers per liter 0 vehicles
23 kilometers per liter 0 vehicles
24 kilometers per liter 0 vehicles
25 kilometers per liter 0 vehicles
26 kilometers per liter 0 vehicles
27 kilometers per liter 0 vehicles
28 kilometers per liter 0 vehicles
29 kilometers per liter 0 vehicles
30 kilometers per liter 0 vehicles
31 kilometers per liter 0 vehicles
32 kilometers per liter 0 vehicles
33 kilometers per liter 0 vehicles
34 kilometers per liter 0 vehicles
35 kilometers per liter 0 vehicles
36 kilometers per liter 0 vehicles
37 kilometers per liter 0 vehicles
38 kilometers per liter 0 vehicles
39 kilometers per liter 1 vehicles
40 kilometers per liter 0 vehicles
41 kilometers per liter 0 vehicles
42 kilometers per liter 2 vehicles
43 kilometers per liter 2 vehicles
44 kilometers per liter 0 vehicles
45 kilometers per liter 1 vehicles
46 kilometers per liter 2 vehicles
47 kilometers per liter 3 vehicles
48 kilometers per liter 3 vehicles
49 kilometers per liter 4 vehicles
50 kilometers per liter 1 vehicles
51 kilometers per liter 0 vehicles
52 kilometers per liter 1 vehicles
53 kilometers per liter 3 vehicles
54 kilometers per liter 1 vehicles
55 kilometers per liter 1 vehicles
56 kilometers per liter 0 vehicles
57 kilometers per liter 2 vehicles
58 kilometers per liter 0 vehicles
59 kilometers per liter 0 vehicles
60 kilometers per liter 0 vehicles
61 kilometers per liter 1 vehicles
62 kilometers per liter 0 vehicles
63 kilometers per liter 1 vehicles
64 kilometers per liter 0 vehicles
65 kilometers per liter 0 vehicles
66 kilometers per liter 0 vehicles
67 kilometers per liter 0 vehicles
68 kilometers per liter 0 vehicles
69 kilometers per liter 0 vehicles
70 kilometers per liter 0 vehicles
71 kilometers per liter 0 vehicles
72 kilometers per liter 0 vehicles
73 kilometers per liter 0 vehicles
74 kilometers per liter 1 vehicles
75 kilometers per liter 0 vehicles
76 kilometers per liter 1 vehicles
Model Year Body/Powertrain km/L  
2003 2003 4dr Sedan 330-hp 3.7L V6 7-sp shiftable automatic RWD 32.72
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With the turbocharged 155kW 2.0L I4 engine, 7-speed shiftable automatic transmission, and rear-wheel drive, the 2003 Infiniti G has been averaging 32.72 L/100km (liters per 100 kilometers).

The 2003 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 85 kilometers per hour (about 46.9 percent of the kilometers driven). The rest of the kilometers were in the city (15.3 percent), in heavy traffic (9.1 percent), and in the suburbs (0 percent).

In addition, the average 2003 Infiniti G in this analysis was driven on flat terrain with a medium foot and the AC on only some of the time.
2003 2003 4dr Sedan 260-hp 3.5L V6 6-sp manual RWD 57.6
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2003 2003 2dr Coupe 330-hp 3.7L V6 6-sp manual RWD 31.97
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2003 2003 2dr Coupe 330-hp 3.7L V6 7-sp shiftable automatic RWD 10.52
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2003 2003 2dr Coupe 280-hp 3.5L V6 5-sp shiftable automatic RWD 49.33
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What Our Members Are Saying about the Real Gas Mileage of the 2003 Infiniti G

2003 Infiniti G Real Gas Mileage: Cons
YearBody/PowertrainComment
2004 2dr Coupe 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 At the very best, my combined fuel economy never got above 20.4 MPG and is recenly under 19. see full Infiniti G review
2004 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic AWD		 got between 14 and 17 mpg in the city see full Infiniti G review
2004 4dr Sedan 260-horsepower 3.5L V6
6-speed manual RWD		 The G35 takes premium gas and from my research it looked like it would average about 10 mpg less than the Solara. see full Infiniti G review
2004 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic AWD		 16-17 city/24-25 highway see full Infiniti G review
2004 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Currently get 25-27 highway and 21=22.5 in the city. Live in extremely mountainous terrain, so mpg would be higher in a flat area such as Nebraska or Kansas. I would have added a 6th gear and kept the power. see full Infiniti G review
2003 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Very poor city mpg, almost as bad as large SUV. see full Infiniti G review
2003 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Highway fuel economy should be better, maybe higher fifth gear for lower revs at highway speeds. see full Infiniti G review
2003 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 City fuel economy is terrible. (15L/100km) Highway fuel economy is not as good either. (8L/100km @ 105km/hr) if going any faster, the fuel economy get worse! see full Infiniti G review
2003 2dr Coupe 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Freeway or city driving, AC or no AC, always average out to be around 20-21. No more no less. see full Infiniti G review
2003 2dr Coupe 280-horsepower 3.5L V6
6-speed manual RWD		 Horrible fuel milage. Seems like they under-rated the horsepower and over rated the fuel economy. see full Infiniti G review
 

2003 Infiniti G 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 Infiniti G's real-world km/L based on how and where you drive a car.