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Infiniti M vs. Mercury Mariner MPG

Chart is based on 136 fuel economy reports for the Infiniti M and 35 fuel economy reports for the Mercury Mariner.

Infiniti M MPG

Infiniti M Infiniti M 2013 22.8 MPG Highway Percentage 34 percent Infiniti M Infiniti M 2012 21.1 MPG Highway Percentage 42 percent Infiniti M Infiniti M 2012 22.1 MPG Highway Percentage 30 percent Infiniti M Infiniti M 2011 19.3 MPG Highway Percentage 25 percent Infiniti M Infiniti M 2011 18.4 MPG Highway Percentage 37 percent Infiniti M Infiniti M 2011 21.0 MPG Highway Percentage 40 percent Infiniti M Infiniti M 2011 20.0 MPG Highway Percentage 40 percent Infiniti M Infiniti M 2010 14.0 MPG Highway Percentage 40 percent Infiniti M Infiniti M 2010 22.0 MPG Highway Percentage 85 percent Infiniti M Infiniti M 2009 15.5 MPG Highway Percentage 65 percent Infiniti M Infiniti M 2009 22.0 MPG Highway Percentage 20 percent Infiniti M Infiniti M 2009 21.0 MPG Highway Percentage 30 percent Infiniti M Infiniti M 2008 17.0 MPG Highway Percentage 45 percent Infiniti M Infiniti M 2008 19.7 MPG Highway Percentage 45 percent Infiniti M Infiniti M 2008 20.0 MPG Highway Percentage 66 percent Infiniti M Infiniti M 2007 15.9 MPG Highway Percentage 23 percent Infiniti M Infiniti M 2007 19.8 MPG Highway Percentage 29 percent Infiniti M Infiniti M 2007 20.0 MPG Highway Percentage 35 percent Infiniti M Infiniti M 2006 19.3 MPG Highway Percentage 60 percent Infiniti M Infiniti M 2006 19.9 MPG Highway Percentage 39 percent Infiniti M Infiniti M 2006 19.0 MPG Highway Percentage 47 percent Infiniti M Infiniti M 2006 15.4 MPG Highway Percentage 10 percent Infiniti M Infiniti M 2004 19.9 MPG Highway Percentage 35 percent Infiniti M Infiniti M 2003 18.4 MPG Highway Percentage 36 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
2013 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 hills light light 12 26 29 34 68 22.8  
2012 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med light 3 23 32 42 80 21.1  
2012 4dr Sedan 302-horsepower 3.5L V6 Hybrid
7-speed shiftable automatic RWD		 flat light hvy 0 50 20 30 80 22.1  
2011 4dr Sedan 420-horsepower 5.6L V8
7-speed shiftable automatic RWD		 flat med hvy 35 35 5 25 75 19.3  
2011 4dr Sedan 420-horsepower 5.6L V8
7-speed shiftable automatic AWD		 flat med light 7 31 25 37 67 18.4  
2011 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic RWD		 flat med light 5 45 10 40 60 21.0  
2011 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 flat med light 5 24 30 40 70 20.0  
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2010 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic AWD		 flat med none 10 10 40 40 75 14.0  
2010 4dr Sedan 303-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat light hvy 0 3 12 85 70 22.0  
2009 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic AWD		 flat med light 6 14 15 65 69 15.5  
2009 4dr Sedan 303-horsepower 3.5L V6
7-speed shiftable automatic RWD		 flat med light 0 0 80 20 60 22.0  
2009 4dr Sedan 303-horsepower 3.5L V6
5-speed shiftable automatic AWD		 hills med light 20 40 10 30 65 21.0  
2008 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic RWD		 flat lead hvy 35 15 5 45 75 17.0  
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 21 17 18 45 67 19.7  
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic AWD		 hills med light 9 10 15 66 68 20.0  
2007 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic RWD		 flat med light 4 35 38 23 70 15.9  
2007 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat light light 20 28 23 29 71 19.8  
2007 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat med light 2 21 42 35 68 20.0  
2006 4dr Sedan 335-horsepower 4.5L V8
5-speed shiftable automatic RWD		 flat light light 10 13 17 60 73 19.3  
2006 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 flat med light 9 28 23 39 68 19.9  
2006 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat med light 9 17 26 47 75 19.0  
2006 0 280-horsepower 3.5L V6
5-speed shiftable automatic AWD		 flat light hvy 5 55 30 10 110 15.4  
2004 4dr Sedan 340-horsepower 4.5L V8
5-speed shiftable automatic RWD		 hills med light 13 8 45 35 78 19.9  
2003 4dr Sedan 340-horsepower 4.5L V8
5-speed shiftable automatic RWD		 flat med light 13 33 17 36 78 18.4  

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

Mercury Mariner MPG

Mercury Mariner Mercury Mariner 2011 18.9 MPG Highway Percentage 10 percent Mercury Mariner Mercury Mariner 2009 20.6 MPG Highway Percentage 30 percent Mercury Mariner Mercury Mariner 2009 35.5 MPG Highway Percentage 44 percent Mercury Mariner Mercury Mariner 2009 32.3 MPG Highway Percentage 60 percent Mercury Mariner Mercury Mariner 2008 22.0 MPG Highway Percentage 25 percent Mercury Mariner Mercury Mariner 2008 21.4 MPG Highway Percentage 33 percent Mercury Mariner Mercury Mariner 2008 30.8 MPG Highway Percentage 23 percent Mercury Mariner Mercury Mariner 2007 23.4 MPG Highway Percentage 61 percent Mercury Mariner Mercury Mariner 2007 29.8 MPG Highway Percentage 18 percent Mercury Mariner Mercury Mariner 2006 23.1 MPG Highway Percentage 45 percent Mercury Mariner Mercury Mariner 2006 21.5 MPG Highway Percentage 75 percent Mercury Mariner Mercury Mariner 2006 30.6 MPG Highway Percentage 31 percent Mercury Mariner Mercury Mariner 2005 21.0 MPG Highway Percentage 15 percent Mercury Mariner Mercury Mariner 2005 22.3 MPG Highway Percentage 75 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
2011 4dr SUV 240-horsepower 3.0L V6
6-speed automatic FWD		 flat v.lt none 30 30 30 10 60 18.9  
2009 4dr SUV 240-horsepower 3.0L V6
6-speed automatic FWD		 flat light light 20 20 30 30 70 20.6  
2009 4dr SUV 153-horsepower 2.5L I4 Hybrid
CVT FWD		 flat light light 11 13 31 44 60 35.5  
2009 4dr SUV 153-horsepower 2.5L I4 Hybrid
CVT AWD		 flat med light 30 0 10 60 80 32.3  
2008 4dr SUV 200-horsepower 3.0L V6
4-speed automatic FWD		 flat light light 0 45 30 25 70 22.0  
2008 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD		 flat light none 0 8 60 33 60 21.4  
2008 4dr SUV 133-horsepower 2.3L I4 Hybrid
CVT AWD		 flat light hvy 5 18 55 23 65 30.8  
Looking for a warranty? Get a quote.
2007 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD		 flat light light 0 3 37 61 63 23.4  
2007 4dr SUV 133-horsepower 2.3L I4 Hybrid
CVT AWD		 flat light light 11 16 56 18 70 29.8  
2006 4dr SUV 200-horsepower 3.0L V6
4-speed automatic FWD		 flat light light 8 13 35 45 62 23.1  
2006 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD		 flat med light 0 0 25 75 75 21.5  
2006 4dr SUV 133-horsepower 2.3L I4 Hybrid
CVT AWD		 hills light light 16 18 35 31 70 30.6  
2005 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD		 flat light light 0 0 85 15 60 21.0  
2005 4dr SUV 153-horsepower 2.3L I4
4-speed automatic AWD		 flat v.lt light 3 13 8 75 67 22.3  

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This page shows only averages. See all the Mercury Mariner fuel economy data.

Infiniti M vs. Mercury Mariner 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 M and Mercury Mariner'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 Infiniti models and Mercury models.

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

Infiniti M Real Gas Mileage: Pros
YearBody/PowertrainComment
2011 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 Fuel economy is abysmal around town. I guess that's the price you pay for going grocery shopping with over 300 HP. However, on the highway it's very possible to exceed the EPA mileage number. see full Infiniti M review
2006 4dr Sedan 335-horsepower 4.5L V8
5-speed shiftable automatic RWD		 V8 power--it's a gas guzzler and could've used an extra 1 or 2 speeds more since it revs so high at highway speeds. see full Infiniti M review
2006 4dr Sedan 335-horsepower 4.5L V8
5-speed shiftable automatic RWD		 78,000 miles primarily city driving and rarely use AC-16.9 mpg. 4.5 L V8 great power train with RWD-great fun to drive. see full Infiniti M review
Infiniti M Real Gas Mileage: Cons
YearBody/PowertrainComment
2012 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 I get around 17 city/25 highway. Not impressive but this is not why you buy a car like this. see full Infiniti M review
2011 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic RWD		 I get average about 22 MPG with 80% of highway driving, this is with baby footing of the car, in town and climbing the hill, the milage can drop to 18-19. see full Infiniti M review
2011 4dr Sedan 420-horsepower 5.6L V8
7-speed shiftable automatic AWD		 Fairly poor. see full Infiniti M review
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic RWD		 average 21 hwy see full Infiniti M review
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic RWD		 needs a 6th gear, since there is too much revving in 5th gear while cruising. they put a 6th gear in the 2009 version see full Infiniti M review
2008 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Gas mileage stinks. see full Infiniti M review
2007 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic RWD		 16.9 in city traffice 18.nothing on the highway...blah! see full Infiniti M review
2007 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic RWD		 Averages about 18.5 mpg in mixed suburban/urban/freeway driving. Can get thirsty when you get on the gas, but duh... see full Infiniti M review
2007 4dr Sedan 275-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Large cars get poor milage. 18-20 mpg would like an option to trade some performance for added MPG. see full Infiniti M review
2006 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic RWD		 Often avergaed as low as 16mpg on a tank-full of gas. see full Infiniti M review
 

What Our Members Are Saying about the Real Gas Mileage of the Mercury Mariner

Mercury Mariner Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 0 171-horsepower 2.5L I4
6-speed automatic FWD		 getting 31 mpg highway see full Mercury Mariner review
2009 4dr SUV 171-horsepower 2.5L I4
6-speed automatic FWD		 Has been very good and getting better see full Mercury Mariner review
2009 4dr SUV 240-horsepower 3.0L V6
6-speed automatic FWD		 Coming from a Trailblazer, we like the average of 21-22 MPG in mixed driving, as were used to about 17 MPG. Fuel economy climbs toward the rated 26 MPG the more highway driving we do. see full Mercury Mariner review
2007 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD		 For the first almost three years after we got the car, it gave 21+ mpg in town & 24+ mpg on the road. see full Mercury Mariner review
2005 4dr SUV 153-horsepower 2.3L I4
4-speed automatic AWD		 For an SUV with a 4cyl and 4wd I get avg of 22 MPG mixed city and highway. I usually get 23-26 on freeway only. This is good. see full Mercury Mariner review
Mercury Mariner Real Gas Mileage: Cons
YearBody/PowertrainComment
2007 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD		 For some reason when new Michelin All Terrain tires with Nitrogen air replaced the Champions from the factory, it plummeted to 17 & 20 mpg. No explanation from Michelin, Costco or Ford/Mercury - they have no idea why. see full Mercury Mariner review