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2003 Infiniti G Gas Mileage (MPG)

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

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Infiniti G

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

Infiniti G 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
2003 2dr Coupe 280-horsepower 3.5L V6
6-speed manual RWD		 flat med hvy 20 30 20 30 75 18.0
hills med hvy 0 0 30 70 70 24.0
flat lead light 5 15 40 40 75 21.0
2003 2dr Coupe 280-horsepower 3.5L V6
6-speed manual RWD		 flat med hvy 8 15 30 47 73 21.0
  Averages flat med hvy 8 15 30 47 73 21.0
With the 280-horsepower 3.5L V6 engine, 6-speed manual transmission, and rear-wheel drive, 2003 Infiniti G fuel economy has been averaging 21.0 MPG (miles per gallon).

The 2003 Infiniti Gs in this analysis were driven mostly on the highway at an average speed of 73 miles per hour (about 47 percent of the miles driven). The rest of the miles were in the suburbs (30 percent), in the city (15 percent), and in heavy traffic (8 percent).

In addition the average 2003 Infiniti G in this analysis was driven on flat terrain with a medium foot and the AC on most or all of the time.

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

 

What Our Members Are Saying about the Real 2003 Infiniti G MPG

2003 Infiniti G Fuel Economy: Cons
YearBody/PowertrainComment
2003 4dr Sedan 260-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Very poor city mpg, almost as bad as large SUV.
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.
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.
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.
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!