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Porsche 911 vs. Infiniti EX Fuel Economy (km/L)

Chart is based on 56 fuel economy reports for the Porsche 911 and 233 fuel economy reports for the Infiniti EX.

Porsche 911 km/L

Porsche 911 Porsche 911 2009 44.7 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2009 50.1 MPG Highway Percentage 78 percent Porsche 911 Porsche 911 2009 63.3 MPG Highway Percentage 90 percent Porsche 911 Porsche 911 2009 54.8 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2009 46.6 MPG Highway Percentage 50 percent Porsche 911 Porsche 911 2008 47.0 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2007 54.7 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2007 51.7 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2007 56.0 MPG Highway Percentage 85 percent Porsche 911 Porsche 911 2006 42.3 MPG Highway Percentage 34 percent Porsche 911 Porsche 911 2006 50.1 MPG Highway Percentage 80 percent Porsche 911 Porsche 911 2006 42.3 MPG Highway Percentage 35 percent Porsche 911 Porsche 911 2006 46.8 MPG Highway Percentage 66 percent Porsche 911 Porsche 911 2005 48.5 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2005 48.7 MPG Highway Percentage 23 percent Porsche 911 Porsche 911 2005 44.9 MPG Highway Percentage 70 percent Porsche 911 Porsche 911 2004 42.3 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2003 42.3 MPG Highway Percentage 50 percent Porsche 911 Porsche 911 2002 30.6 MPG Highway Percentage 70 percent Porsche 911 Porsche 911 2002 47.0 MPG Highway Percentage 30 percent Porsche 911 Porsche 911 2002 52.5 MPG Highway Percentage 40 percent Porsche 911 Porsche 911 2002 46.1 MPG Highway Percentage 10 percent Porsche 911 Porsche 911 2001 47.0 MPG Highway Percentage 25 percent Porsche 911 Porsche 911 2001 49.4 MPG Highway Percentage 20 percent
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 km/L
2009 2dr Coupe 385-horsepower 3.8L H6
7-speed automated manual RWD		 flat med hvy 2 38 30 30 80 44.7  
2009 2dr Coupe 385-horsepower 3.8L H6
6-speed manual RWD		 flat lead light 1 1 20 78 75 50.1  
2009 2dr Coupe 345-horsepower 3.6L H6
7-speed automated manual RWD		 flat light none 0 10 0 90 75 63.3  
2009 2dr Coupe 345-horsepower 3.6L H6
6-speed manual RWD		 flat v.lt none 5 20 50 25 70 54.8  
2009 2dr Convertible 385-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 0 50 50 75 46.6  
2008 2dr Coupe 355-horsepower 3.8L H6
5-speed shiftable automatic RWD		 flat med hvy 10 50 0 40 75 47.0  
2007 2dr Coupe turbocharged 480hp 3.6L H6
6-speed manual AWD		 mtns lead hvy 5 25 40 30 70 54.7  
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2007 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 30 30 40 70 51.7  
2007 2dr Coupe 325-horsepower 3.6L H6
5-speed shiftable automatic RWD		 flat lead hvy 5 0 10 85 75 56.0  
2006 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 5 32 29 34 65 42.3  
2006 2dr Coupe 325-horsepower 3.6L H6
6-speed manual RWD		 flat med hvy 10 0 10 80 60 50.1  
2006 2dr Convertible 355-horsepower 3.8L H6
6-speed manual RWD		 flat med light 0 5 60 35 75 42.3  
2006 2dr Convertible 355-horsepower 3.8L H6
6-speed manual AWD		 flat med none 5 9 20 66 76 46.8  
2005 2dr Coupe 355-horsepower 3.8L H6
6-speed manual RWD		 hills lead light 0 10 50 40 85 48.5  
2005 2dr Coupe 325-horsepower 3.6L H6
5-speed shiftable automatic RWD		 flat med light 7 13 57 23 60 48.7  
2005 2dr Convertible 325-horsepower 3.6L H6
6-speed manual RWD		 flat med light 0 10 20 70 60 44.9  
2004 2dr Coupe 345-horsepower 3.6L H6
6-speed manual RWD		 flat med none 5 40 30 25 70 42.3  
2003 2dr Coupe turbocharged 450hp 3.6L H6
6-speed manual AWD		 mtns med light 2 3 45 50 90 42.3  
2002 2dr Coupe turbocharged 450hp 3.6L H6
6-speed manual AWD		 flat med none 5 15 10 70 60 30.6  
2002 2dr Coupe turbocharged 450hp 3.6L H6
5-speed shiftable automatic AWD		 flat med hvy 35 35 0 30 70 47.0  
2002 2dr Coupe 320-horsepower 3.6L H6
6-speed manual RWD		 flat v.lt none 10 20 30 40 65 52.5  
2002 2dr Convertible 320-horsepower 3.6L H6
6-speed manual AWD		 hills med none 0 0 90 10 80 46.1  
2001 2dr Coupe turbocharged 415hp 3.6L H6
5-speed shiftable automatic AWD		 flat light light 0 5 70 25 80 47.0  
2001 2dr Coupe 300-horsepower 3.4L H6
6-speed manual RWD		 flat med light 5 15 60 20 60 49.4  

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This page shows only averages. See all the Porsche 911 fuel economy data.

Infiniti EX km/L

Infiniti EX Infiniti EX 2012 56.7 MPG Highway Percentage 50 percent Infiniti EX Infiniti EX 2012 9.4 MPG Highway Percentage 67 percent Infiniti EX Infiniti EX 2011 8.1 MPG Highway Percentage 41 percent Infiniti EX Infiniti EX 2010 43.3 MPG Highway Percentage 33 percent Infiniti EX Infiniti EX 2010 39.7 MPG Highway Percentage 45 percent Infiniti EX Infiniti EX 2009 47.8 MPG Highway Percentage 43 percent Infiniti EX Infiniti EX 2009 10.0 MPG Highway Percentage 21 percent Infiniti EX Infiniti EX 2008 49.1 MPG Highway Percentage 43 percent Infiniti EX Infiniti EX 2008 11.3 MPG Highway Percentage 68 percent
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 km/L
2012 4dr SUV 297-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med hvy 0 10 40 50 75 56.7  
2012 4dr SUV 297-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat light light 6 15 13 67 80 9.4  
2011 4dr SUV 297-horsepower 3.5L V6
7-speed shiftable automatic AWD		 hills light light 0 19 40 41 100 8.1  
2010 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med hvy 14 25 28 33 64 43.3  
2010 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat med none 14 15 27 45 76 39.7  
2009 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat light light 24 8 25 43 70 47.8  
2009 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light none 27 41 11 21 116 10.0  
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2008 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 15 26 16 43 67 49.1  
2008 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light light 4 10 18 68 94 11.3  

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This page shows only averages. See all the Infiniti EX fuel economy data.

Porsche 911 vs. Infiniti EX Fuel Economy (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 Porsche 911 and Infiniti EX's where a car was driven. So you can get an idea of their real-world km/L based on how and where you drive a car.

See TrueDelta's information for all Coupes and Convertibles.
See TrueDelta's information for all Porsche models and Infiniti models.

What Our Members Are Saying about the Real Gas Mileage of the Porsche 911

Porsche 911 Real Gas Mileage: Cons
YearBody/PowertrainComment
2001 2dr Coupe turbocharged 415hp 3.6L H6
5-speed shiftable automatic AWD		 20mpg avg isnt the best see full Porsche 911 review
 

What Our Members Are Saying about the Real Gas Mileage of the Infiniti EX

Infiniti EX Real Gas Mileage: Cons
YearBody/PowertrainComment
2013 4dr SUV 325-horsepower 3.7L V6
7-speed shiftable automatic AWD		 Could be better by today's standards see full Infiniti EX review
2010 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 love the V6 power but the EPA MPG is worrisome see full Infiniti EX review
2010 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 OK This is NOT a car to buy if MPG is important although I am getting over 23 MPG avg. It is a POWERFUL car with a great drive train ready like a race horse at the gate to giddy up and it does when you need it on premium recommended fuel....in spades. I don't drive enough to care about fuel economy all that much. Not an econobox. see full Infiniti EX review
2009 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 17MPG in the city is a little disappointing for a vehicle with such finesse and reputation. I would guess Infiniti would cater to the masses with styling, performance and a little more economy. Not asking for miracles but I'm sure they could squeeze out 3 or 4 more MPG with the same 3.5L V6 see full Infiniti EX review
2008 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Uses premium fuel. see full Infiniti EX review
2008 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 I average about 20 miles per gallon on premium fuel - with a mix of street and highway driving. I typically get 16 mpg in the city and 24 on the highway. Some of this is attributable to the 5 speed transmission on the car, which favors acceleration to economy. I imagine the 7 speed transmission should help the car get better highway economy. see full Infiniti EX review
2008 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Expensive to keep fuelled given poor gas mileage and costs of premium fuel. Number 1 reason I am thinking of switching to another car. see full Infiniti EX review
2008 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Slightly low if driving mostly city. see full Infiniti EX review