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Cadillac DTS vs. Mercury Mariner MPG

Chart is based on 13 fuel economy reports for the Cadillac DTS and 35 fuel economy reports for the Mercury Mariner.

Cadillac DTS MPG

Cadillac DTS Cadillac DTS 2008 17.4 MPG Highway Percentage 10 percent Cadillac DTS Cadillac DTS 2008 21.1 MPG Highway Percentage 40 percent Cadillac DTS Cadillac DTS 2007 17.2 MPG Highway Percentage 40 percent Cadillac DTS Cadillac DTS 2006 15.6 MPG Highway Percentage 25 percent Cadillac DTS Cadillac DTS 2006 22.9 MPG Highway Percentage 59 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
2008 4dr Sedan 291-horsepower 4.6L V8
4-speed automatic FWD		 flat light hvy 0 40 50 10 60 17.4  
2008 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 flat med light 10 30 20 40 70 21.1  
2007 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 flat light light 5 25 30 40 65 17.2  
2006 4dr Sedan 291-horsepower 4.6L V8
4-speed automatic FWD		 flat light hvy 5 40 30 25 65 15.6  
2006 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 flat light light 8 11 23 59 78 22.9  

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This page shows only averages. See all the Cadillac DTS 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  
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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.

Cadillac DTS 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 Cadillac DTS 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 Sedans
See TrueDelta's information for all Cadillac models and Mercury models.

What Our Members Are Saying about the Real Gas Mileage of the Cadillac DTS

Cadillac DTS Real Gas Mileage: Pros
YearBody/PowertrainComment
2009 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 I bought this car almost specifically for my "road" car, for trips, but do occasionally use it around town. I don't know how the other reviewers are driving their cars but I get what I think is great mileage, mid-teens around town and 28-29mgh on trips/hwy at 75MPH. I do try to drive easy to enhance my mileage. see full Cadillac DTS review
2006 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 Great Milage for the level of comfort, 25 plus on trips. see full Cadillac DTS review
2006 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 Great on the highway. At 65 I get a consistant 25mpg. The city is an entirely different story. In stop and go city driving, the best I've ever gotten is 10mpg. The average is 8mpg. The EPA estimates 17 in the city. They are off their rocker. This car sucks gas in city driving. Stay away unless you have tons of money or own an oil refinery. see full Cadillac DTS review
Cadillac DTS Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 Terrible in the city. 8 mpg on average. At least it takes regular. see full Cadillac DTS review
2006 4dr Sedan 275-horsepower 4.6L V8
4-speed automatic FWD		 City gas mileage is pathetic. Since new I was lucky to get 10 mpg in the city, but in stop and go it's 8 mpg. When the car was newer, I took it to the dealer, and they checked everything out. I was told that it's a big V8. The Northstar engine is an embarrassment. see full Cadillac DTS 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