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BMW X5 vs. Mercury Mariner Fuel Economy (km/L)

Chart is based on 103 fuel economy reports for the BMW X5 and 35 fuel economy reports for the Mercury Mariner.

BMW X5 km/L

BMW X5 BMW X5 2018 37.6 MPG Highway Percentage 5 percent BMW X5 BMW X5 2015 11.8 MPG Highway Percentage 50 percent BMW X5 BMW X5 2012 57.6 MPG Highway Percentage 90 percent BMW X5 BMW X5 2012 9.3 MPG Highway Percentage 10 percent BMW X5 BMW X5 2011 45.2 MPG Highway Percentage 5 percent BMW X5 BMW X5 2011 48.3 MPG Highway Percentage 35 percent BMW X5 BMW X5 2010 46.8 MPG Highway Percentage 22 percent BMW X5 BMW X5 2009 9.3 MPG Highway Percentage 20 percent BMW X5 BMW X5 2009 51.6 MPG Highway Percentage 9 percent BMW X5 BMW X5 2009 22.5 MPG Highway Percentage 25 percent BMW X5 BMW X5 2008 49.9 MPG Highway Percentage 68 percent BMW X5 BMW X5 2007 37.6 MPG Highway Percentage 40 percent BMW X5 BMW X5 2007 26.5 MPG Highway Percentage 43 percent BMW X5 BMW X5 2006 41.1 MPG Highway Percentage 46 percent BMW X5 BMW X5 2006 45.5 MPG Highway Percentage 43 percent BMW X5 BMW X5 2005 18.4 MPG Highway Percentage 47 percent BMW X5 BMW X5 2005 45.5 MPG Highway Percentage 49 percent BMW X5 BMW X5 2004 39.9 MPG Highway Percentage 63 percent BMW X5 BMW X5 2004 41.9 MPG Highway Percentage 40 percent BMW X5 BMW X5 2004 47.0 MPG Highway Percentage 60 percent BMW X5 BMW X5 2003 39.2 MPG Highway Percentage 41 percent BMW X5 BMW X5 2003 49.1 MPG Highway Percentage 58 percent BMW X5 BMW X5 2002 48.3 MPG Highway Percentage 40 percent BMW X5 BMW X5 2002 40.9 MPG Highway Percentage 60 percent BMW X5 BMW X5 2002 44.7 MPG Highway Percentage 34 percent BMW X5 BMW X5 2001 48.5 MPG Highway Percentage 72 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
2018 4dr SUV turbocharged 445hp 4.4L V8
8-speed shiftable automatic AWD
flat light none 0 5 90 5 40 37.6  
2015 4dr SUV turbocharged 255hp 3.0L I6 Diesel
8-speed shiftable automatic AWD
flat med light 0 40 10 50 120 11.8  
2012 4dr SUV turbocharged 300hp 3.0L I6
8-speed shiftable automatic AWD
flat med none 0 0 10 90 75 57.6  
2012 4dr SUV turbocharged 265hp 3.0L I6 Diesel
6-speed shiftable automatic AWD
hills light none 20 55 15 10 90 9.3  
2011 4dr SUV turbocharged 300hp 3.0L I6
8-speed shiftable automatic AWD
flat light light 10 80 5 5 60 45.2  
2011 4dr SUV turbocharged 265hp 3.0L I6 Diesel
6-speed shiftable automatic AWD
flat med light 4 34 28 35 75 48.3  
2010 4dr SUV turbocharged 265hp 3.0L I6 Diesel
6-speed shiftable automatic AWD
flat med none 7 38 32 22 79 46.8  
Looking for a warranty? Get a quote.
2009 4dr SUV turbocharged 282hp 3.0L I6 Diesel
6-speed shiftable automatic AWD
flat light light 0 10 70 20 100 9.3  
2009 4dr SUV turbocharged 265hp 3.0L I6 Diesel
6-speed shiftable automatic AWD
flat light light 2 69 20 9 64 51.6  
2009 4dr SUV 260-horsepower 3.0L I6
6-speed shiftable automatic AWD
flat med light 5 30 40 25 90 22.5  
2008 4dr SUV 260-horsepower 3.0L I6
6-speed shiftable automatic AWD
flat light light 5 9 18 68 63 49.9  
2007 4dr SUV 350-horsepower 4.8L V8
6-speed shiftable automatic AWD
flat med light 3 0 57 40 70 37.6  
2007 4dr SUV 260-horsepower 3.0L I6
6-speed shiftable automatic AWD
flat med light 25 0 33 43 86 26.5  
2006 4dr SUV 315-horsepower 4.4L V8
6-speed shiftable automatic AWD
flat med none 19 22 13 46 61 41.1  
2006 4dr SUV 225-horsepower 3.0L I6
5-speed shiftable automatic AWD
flat med light 10 13 33 43 62 45.5  
2005 4dr SUV 315-horsepower 4.4L V8
6-speed shiftable automatic AWD
flat med light 16 24 13 47 86 18.4  
2005 4dr SUV 225-horsepower 3.0L I6
5-speed shiftable automatic AWD
flat med hvy 0 50 2 49 73 45.5  
2004 4dr SUV 315-horsepower 4.4L V8
6-speed shiftable automatic AWD
flat med light 2 5 30 63 70 39.9  
2004 4dr SUV 225-horsepower 3.0L I6
6-speed manual AWD
flat med light 20 20 20 40 70 41.9  
2004 4dr SUV 225-horsepower 3.0L I6
5-speed shiftable automatic AWD
flat light none 0 0 40 60 60 47.0  
2003 4dr SUV 282-horsepower 4.4L V8
5-speed shiftable automatic AWD
hills med none 3 20 37 41 75 39.2  
2003 4dr SUV 225-horsepower 3.0L I6
5-speed shiftable automatic AWD
flat light none 6 15 21 58 75 49.1  
2002 4dr SUV 340-horsepower 4.6L V8
5-speed shiftable automatic AWD
flat med none 10 10 40 40 60 48.3  
2002 4dr SUV 282-horsepower 4.4L V8
5-speed shiftable automatic AWD
flat med light 2 35 3 60 62 40.9  
2002 4dr SUV 225-horsepower 3.0L I6
5-speed shiftable automatic AWD
flat med light 33 32 2 34 65 44.7  
2001 4dr SUV 282-horsepower 4.4L V8
5-speed shiftable automatic AWD
flat light light 2 25 2 72 67 48.5  

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This page shows only averages. See all the BMW X5 fuel economy data.

Mercury Mariner km/L

Mercury Mariner Mercury Mariner 2011 44.4 MPG Highway Percentage 10 percent Mercury Mariner Mercury Mariner 2009 48.5 MPG Highway Percentage 30 percent Mercury Mariner Mercury Mariner 2009 83.5 MPG Highway Percentage 44 percent Mercury Mariner Mercury Mariner 2009 76.0 MPG Highway Percentage 60 percent Mercury Mariner Mercury Mariner 2008 51.7 MPG Highway Percentage 25 percent Mercury Mariner Mercury Mariner 2008 50.4 MPG Highway Percentage 33 percent Mercury Mariner Mercury Mariner 2008 72.3 MPG Highway Percentage 23 percent Mercury Mariner Mercury Mariner 2007 55.0 MPG Highway Percentage 61 percent Mercury Mariner Mercury Mariner 2007 70.2 MPG Highway Percentage 18 percent Mercury Mariner Mercury Mariner 2006 54.4 MPG Highway Percentage 45 percent Mercury Mariner Mercury Mariner 2006 50.6 MPG Highway Percentage 75 percent Mercury Mariner Mercury Mariner 2006 71.9 MPG Highway Percentage 31 percent Mercury Mariner Mercury Mariner 2005 49.4 MPG Highway Percentage 15 percent Mercury Mariner Mercury Mariner 2005 52.5 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 km/L
2011 4dr SUV 240-horsepower 3.0L V6
6-speed automatic FWD
flat v.lt none 30 30 30 10 60 44.4  
2009 4dr SUV 240-horsepower 3.0L V6
6-speed automatic FWD
flat light light 20 20 30 30 70 48.5  
2009 4dr SUV 153-horsepower 2.5L I4 Hybrid
CVT FWD
flat light light 11 13 31 44 60 83.5  
2009 4dr SUV 153-horsepower 2.5L I4 Hybrid
CVT AWD
flat med light 30 0 10 60 80 76.0  
2008 4dr SUV 200-horsepower 3.0L V6
4-speed automatic FWD
flat light light 0 45 30 25 70 51.7  
2008 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD
flat light none 0 8 60 33 60 50.4  
2008 4dr SUV 133-horsepower 2.3L I4 Hybrid
CVT AWD
flat light hvy 5 18 55 23 65 72.3  
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 55.0  
2007 4dr SUV 133-horsepower 2.3L I4 Hybrid
CVT AWD
flat light light 11 16 56 18 70 70.2  
2006 4dr SUV 200-horsepower 3.0L V6
4-speed automatic FWD
flat light light 8 13 35 45 62 54.4  
2006 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD
flat med light 0 0 25 75 75 50.6  
2006 4dr SUV 133-horsepower 2.3L I4 Hybrid
CVT AWD
hills light light 16 18 35 31 70 71.9  
2005 4dr SUV 200-horsepower 3.0L V6
4-speed automatic AWD
flat light light 0 0 85 15 60 49.4  
2005 4dr SUV 153-horsepower 2.3L I4
4-speed automatic AWD
flat v.lt light 3 13 8 75 67 52.5  

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

BMW X5 vs. Mercury Mariner 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 BMW X5 and Mercury Mariner'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 SUVs
See TrueDelta's information for all BMW models and Mercury models.

What Our Members Are Saying about the Real Gas Mileage of the BMW X5

BMW X5 Real Gas Mileage: Pros
YearBody/PowertrainComment
2009 4dr SUV turbocharged 265hp 3.0L I6 Diesel
6-speed shiftable automatic AWD
Diesel engine, 24 MPG highway, 600 miles per tank see full BMW X5 review
2007 4dr SUV 260-horsepower 3.0L I6
6-speed shiftable automatic AWD
Better than our 6 cyl Grand Cherokee by far see full BMW X5 review
BMW X5 Real Gas Mileage: Cons
YearBody/PowertrainComment
2010 4dr SUV turbocharged 265hp 3.0L I6 Diesel
6-speed shiftable automatic AWD
like many other SUV it consume more fuel, but I know the EPA before buying the X5. see full BMW X5 review
2008 4dr SUV 260-horsepower 3.0L I6
6-speed shiftable automatic AWD
poor compared to diesel see full BMW X5 review
2006 4dr SUV 225-horsepower 3.0L I6
5-speed shiftable automatic AWD
The 3.0L i6 is rather underpowered, and it's hard for me to squeeze even 22 mpg out of my X5. Most of the time, I get close to 20. Most V8 X5s from this generation get 16-18 mpg. see full BMW X5 review
2004 4dr SUV 225-horsepower 3.0L I6
5-speed shiftable automatic AWD
I get a consistant 16.6mpg. Mostly in town driving. see full BMW X5 review
2003 4dr SUV 282-horsepower 4.4L V8
5-speed shiftable automatic AWD
A gas drinker~~~ even considered its engine litre~~~ see full BMW X5 review
2002 4dr SUV 282-horsepower 4.4L V8
5-speed shiftable automatic AWD
It gets about 16 mpg in town and about 19-20 on the highway. For the amount of performance I should not complain but I would love a SUV that got about 30 see full BMW X5 review
2001 4dr SUV 282-horsepower 4.4L V8
5-speed shiftable automatic AWD
Horrible mileage. see full BMW X5 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