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Acura MDX vs. Infiniti EX MPG

Chart is based on 251 fuel economy reports for the Acura MDX and 233 fuel economy reports for the Infiniti EX.

Acura MDX MPG

Acura MDX Acura MDX 2014 18.8 MPG Highway Percentage 40 percent Acura MDX Acura MDX 2014 20.0 MPG Highway Percentage 55 percent Acura MDX Acura MDX 2011 16.5 MPG Highway Percentage 50 percent Acura MDX Acura MDX 2010 15.4 MPG Highway Percentage 30 percent Acura MDX Acura MDX 2009 18.7 MPG Highway Percentage 59 percent Acura MDX Acura MDX 2008 19.6 MPG Highway Percentage 51 percent Acura MDX Acura MDX 2007 18.6 MPG Highway Percentage 52 percent Acura MDX Acura MDX 2006 19.7 MPG Highway Percentage 42 percent Acura MDX Acura MDX 2005 18.9 MPG Highway Percentage 49 percent Acura MDX Acura MDX 2004 19.3 MPG Highway Percentage 48 percent Acura MDX Acura MDX 2003 17.5 MPG Highway Percentage 39 percent Acura MDX Acura MDX 2002 18.8 MPG Highway Percentage 37 percent Acura MDX Acura MDX 2001 16.6 MPG Highway Percentage 31 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 MPG
2014 4dr SUV 290-horsepower 3.5L V6
6-speed shiftable automatic FWD		 flat light none 0 20 40 40 70 18.8  
2014 4dr SUV 290-horsepower 3.5L V6
6-speed shiftable automatic AWD		 flat med light 0 10 35 55 65 20.0  
2011 4dr SUV 300-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light none 8 10 31 50 62 16.5  
2010 4dr SUV 300-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light none 12 0 58 30 67 15.4  
2009 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 flat light light 6 15 21 59 94 18.7  
2008 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 flat light light 10 15 24 51 71 19.6  
2007 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 flat med none 3 13 32 52 73 18.6  
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2006 4dr SUV 253-horsepower 3.5L V6
5-speed automatic AWD		 flat light light 5 27 26 42 67 19.7  
2005 4dr SUV 265-horsepower 3.5L V6
5-speed automatic AWD		 flat light light 10 27 14 49 68 18.9  
2004 4dr SUV 265-horsepower 3.5L V6
5-speed automatic AWD		 flat light light 6 19 27 48 67 19.3  
2003 4dr SUV 260-horsepower 3.5L V6
5-speed automatic AWD		 flat med none 7 32 22 39 68 17.5  
2002 4dr SUV 240-horsepower 3.5L V6
5-speed automatic AWD		 flat light light 9 30 25 37 88 18.8  
2001 4dr SUV 240-horsepower 3.5L V6
5-speed automatic AWD		 flat med light 0 29 41 31 69 16.6  

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This page shows only averages. See all the Acura MDX fuel economy data.

Infiniti EX MPG

Infiniti EX Infiniti EX 2012 24.1 MPG Highway Percentage 50 percent Infiniti EX Infiniti EX 2012 16.9 MPG Highway Percentage 67 percent Infiniti EX Infiniti EX 2011 19.2 MPG Highway Percentage 41 percent Infiniti EX Infiniti EX 2010 18.4 MPG Highway Percentage 33 percent Infiniti EX Infiniti EX 2010 19.6 MPG Highway Percentage 45 percent Infiniti EX Infiniti EX 2009 20.3 MPG Highway Percentage 43 percent Infiniti EX Infiniti EX 2009 18.8 MPG Highway Percentage 21 percent Infiniti EX Infiniti EX 2008 20.9 MPG Highway Percentage 43 percent Infiniti EX Infiniti EX 2008 18.9 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 MPG
2012 4dr SUV 297-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med hvy 0 10 40 50 75 24.1  
2012 4dr SUV 297-horsepower 3.5L V6
7-speed shiftable automatic AWD		 flat light light 6 15 13 67 80 16.9  
2011 4dr SUV 297-horsepower 3.5L V6
7-speed shiftable automatic AWD		 hills light light 0 19 40 41 100 19.2  
2010 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med hvy 14 25 28 33 64 18.4  
2010 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat med none 14 15 27 45 76 19.6  
2009 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat light light 24 8 25 43 70 20.3  
2009 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light none 27 41 11 21 116 18.8  
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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 20.9  
2008 4dr SUV 297-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light light 4 10 18 68 94 18.9  

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

Acura MDX vs. Infiniti EX 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 Acura MDX and Infiniti EX's where a car was driven. So you can get an idea of their real-world MPG based on how and where you drive a car.

See TrueDelta's information for all SUVs
See TrueDelta's information for all Acura models and Infiniti models.

TrueDelta Reviews the Real Gas Mileage of the Acura MDX

Acura MDX Real Gas Mileage: Pros
YearComment
2014 In addition to trimming the size and weight of the MDX, Acura also reduced the size of the V6 engine from 3.7 to 3.5 liters. Thanks to direct injection the new, smaller engine is nearly as powerful (290 vs. 300 horsepower), and is even a little punchier at low rpm. It can run on three cylinders to save fuel while cruising. The QX60's V6, also 3.5 liters, lacks direct injection and is only good for 265 horsepower. Even though the Infiniti's CVT (continuously variable transmission) can hold the engine at its power peak, this isn't enough to compensate for its power and weight disadvantages. The MDX is noticeably quicker, if still not thrillingly quick. (It can get to 60 mph in about seven seconds.) Then again, fuel economy appears to have been the priority. In the EPA's tests, the 2013 MDX rated 16 mpg city, 21 mpg highway. Infiniti, aiming to top these marks with the JX35 did so by two mpg (18/23). A redesigned CVT shared with the new Nissan Pathfinder bumps the QX60 to 19/25. The new MDX trails the Infiniti by one mpg in the city, but tops it on the highway with a 27 mpg rating--tying the new diesel BMW X5 and impressive for a gas-powered three-row crossover. In real-world suburban driving with an economy-minded right foot the trip computer reported averages from 21 to 23. With a feather-light foot and good luck with traffic lights, 25 can happen. Drive the MDX hard enough to enjoy the snarl that kicks in with the big VTEC cam lobes at 5,000 rpm, on the other hand, and mpg falls into the mid-teens. Highway driving confirmed the EPA estimate. see full Acura MDX review
 

What Our Members Are Saying about the Real Gas Mileage of the Acura MDX

Acura MDX Real Gas Mileage: Pros
YearBody/PowertrainComment
2014 4dr SUV 290-horsepower 3.5L V6
6-speed shiftable automatic FWD		 Bought this car because the fuel economy was the same as the Hybrid SUV I was looking to replace. Best miliage is on the highway with AC off at 27 MPG. It gets 23-24 in the city with AC off. see full Acura MDX review
2008 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 can be better see full Acura MDX review
2006 4dr SUV 253-horsepower 3.5L V6
5-speed automatic AWD		 One of the best for an SUV. 24 highway at 70 mph, 20 in town. see full Acura MDX review
2002 4dr SUV 240-horsepower 3.5L V6
5-speed automatic AWD		 I have averaged 25 mpg on the road, occasionally reaching 26-7. Ethanol is bad for it (as it is on all older cars). see full Acura MDX review
2002 4dr SUV 240-horsepower 3.5L V6
5-speed automatic AWD		 Best economy in its class. For a 7 passenger vehicle, great hwy mileage. I averaged 22-25mpg strict hwy. 15-18mpg in town. see full Acura MDX review
2002 4dr SUV 240-horsepower 3.5L V6
5-speed automatic AWD		 Unbeatable for a 4WD vehicle of its capacity. see full Acura MDX review
Acura MDX Real Gas Mileage: Cons
YearBody/PowertrainComment
2012 4dr SUV 300-horsepower 3.7L V6
6-speed shiftable automatic AWD		 Gas mileage is not good. The best I get is around 20 mpg, and use 91 octane as reccommended. I've tried mid-grade 89 octane with no noticable difference but for $1.00-$2.00 per tankful, I'm choosing to stick with what is reccommended. It would be nice to have a front wheel drive only version which would save on gas, but it's not offered. see full Acura MDX review
2008 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 Well, it's AWD, and it's a heavy SUV. As a result, fuel economy is not great. see full Acura MDX review
2008 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 I have yet to see 15 city/20 hwy, even with 12k on the odometer and not driving it hard. 13/18 is more like it. see full Acura MDX review
2008 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 Gas engine does not achieve excellent mileage diesels provide see full Acura MDX review
2008 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 Gets only 17-18 mpg. see full Acura MDX review
2007 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 City driving is worse than advertised...15 to 16 mpg. But highway is 23-24 mpg. see full Acura MDX review
2007 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 I get only 16mpg even on highways see full Acura MDX review
2007 4dr SUV 300-horsepower 3.7L V6
5-speed shiftable automatic AWD		 19Mpg is ok. Its not great. see full Acura MDX review
2006 4dr SUV 253-horsepower 3.5L V6
5-speed automatic AWD		 wish the fuel economy could have been addressed a bit more...not really complaining cos I drive an Odyssey too ..which has the same engine as the MDX..similar consumption... see full Acura MDX review
2005 4dr SUV 265-horsepower 3.5L V6
5-speed automatic AWD		 Would get a hybrid next - more MPG. see full Acura MDX 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