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GMC Terrain vs. Mazda Mazda6 MPG

Chart is based on 318 fuel economy reports for the GMC Terrain and 562 fuel economy reports for the Mazda Mazda6.

GMC Terrain MPG

GMC Terrain GMC Terrain 2020 24.2 MPG Highway Percentage 63 percent GMC Terrain GMC Terrain 2016 23.3 MPG Highway Percentage 96 percent GMC Terrain GMC Terrain 2014 27.1 MPG Highway Percentage 100 percent GMC Terrain GMC Terrain 2013 16.4 MPG Highway Percentage 5 percent GMC Terrain GMC Terrain 2013 24.0 MPG Highway Percentage 37 percent GMC Terrain GMC Terrain 2012 17.8 MPG Highway Percentage 33 percent GMC Terrain GMC Terrain 2012 21.5 MPG Highway Percentage 60 percent GMC Terrain GMC Terrain 2012 24.5 MPG Highway Percentage 90 percent GMC Terrain GMC Terrain 2011 20.3 MPG Highway Percentage 30 percent GMC Terrain GMC Terrain 2011 25.6 MPG Highway Percentage 92 percent GMC Terrain GMC Terrain 2011 23.8 MPG Highway Percentage 49 percent GMC Terrain GMC Terrain 2011 20.4 MPG Highway Percentage 40 percent GMC Terrain GMC Terrain 2010 21.0 MPG Highway Percentage 41 percent GMC Terrain GMC Terrain 2010 20.4 MPG Highway Percentage 57 percent GMC Terrain GMC Terrain 2010 25.7 MPG Highway Percentage 78 percent GMC Terrain GMC Terrain 2010 25.0 MPG Highway Percentage 79 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
2020 4dr SUV turbocharged 252hp 2.0L I4
9-speed shiftable automatic 4WD		 flat med none 0 0 37 63 80 24.2  
2016 4dr SUV 301-horsepower 3.6L V6
6-speed shiftable automatic AWD		 hills med none 1 3 1 96 112 23.3  
2014 4dr SUV 301-horsepower 3.6L V6
6-speed shiftable automatic FWD		 flat light none 0 0 0 100 50 27.1  
2013 4dr SUV 301-horsepower 3.6L V6
6-speed shiftable automatic AWD		 flat light hvy 10 10 75 5 80 16.4  
2013 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 flat light light 7 19 37 37 60 24.0  
2012 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic AWD		 flat med none 3 13 53 33 58 17.8  
2012 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 flat light none 5 15 20 60 70 21.5  
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2012 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 flat med light 0 5 5 90 100 24.5  
2011 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat light none 0 0 70 30 75 20.3  
2011 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic AWD		 hills light light 1 2 5 92 110 25.6  
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 flat light none 5 13 33 49 66 23.8  
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 flat light none 9 28 23 40 71 20.4  
2010 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat med light 6 4 49 41 64 21.0  
2010 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic AWD		 flat light none 2 6 35 57 89 20.4  
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 flat light light 5 7 10 78 93 25.7  
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 flat light none 4 9 8 79 92 25.0  

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This page shows only averages. See all the GMC Terrain fuel economy data.

Mazda Mazda6 MPG

Mazda Mazda6 Mazda Mazda6 2017 25.0 MPG Highway Percentage 10 percent Mazda Mazda6 Mazda Mazda6 2016 38.2 MPG Highway Percentage 30 percent Mazda Mazda6 Mazda Mazda6 2015 30.2 MPG Highway Percentage 44 percent Mazda Mazda6 Mazda Mazda6 2014 29.4 MPG Highway Percentage 26 percent Mazda Mazda6 Mazda Mazda6 2014 36.1 MPG Highway Percentage 72 percent Mazda Mazda6 Mazda Mazda6 2011 18.4 MPG Highway Percentage 36 percent Mazda Mazda6 Mazda Mazda6 2011 25.5 MPG Highway Percentage 50 percent Mazda Mazda6 Mazda Mazda6 2010 16.8 MPG Highway Percentage 13 percent Mazda Mazda6 Mazda Mazda6 2010 27.3 MPG Highway Percentage 43 percent Mazda Mazda6 Mazda Mazda6 2009 22.0 MPG Highway Percentage 46 percent Mazda Mazda6 Mazda Mazda6 2009 27.6 MPG Highway Percentage 51 percent Mazda Mazda6 Mazda Mazda6 2009 25.9 MPG Highway Percentage 55 percent Mazda Mazda6 Mazda Mazda6 2008 26.4 MPG Highway Percentage 53 percent Mazda Mazda6 Mazda Mazda6 2008 20.7 MPG Highway Percentage 11 percent Mazda Mazda6 Mazda Mazda6 2007 22.9 MPG Highway Percentage 53 percent Mazda Mazda6 Mazda Mazda6 2007 27.5 MPG Highway Percentage 78 percent Mazda Mazda6 Mazda Mazda6 2007 27.4 MPG Highway Percentage 52 percent Mazda Mazda6 Mazda Mazda6 2007 27.2 MPG Highway Percentage 40 percent Mazda Mazda6 Mazda Mazda6 2007 24.3 MPG Highway Percentage 42 percent Mazda Mazda6 Mazda Mazda6 2006 22.0 MPG Highway Percentage 55 percent Mazda Mazda6 Mazda Mazda6 2006 21.7 MPG Highway Percentage 50 percent Mazda Mazda6 Mazda Mazda6 2006 21.9 MPG Highway Percentage 42 percent Mazda Mazda6 Mazda Mazda6 2006 23.0 MPG Highway Percentage 37 percent Mazda Mazda6 Mazda Mazda6 2006 30.1 MPG Highway Percentage 68 percent Mazda Mazda6 Mazda Mazda6 2006 26.2 MPG Highway Percentage 71 percent Mazda Mazda6 Mazda Mazda6 2006 22.8 MPG Highway Percentage 70 percent Mazda Mazda6 Mazda Mazda6 2006 21.0 MPG Highway Percentage 35 percent Mazda Mazda6 Mazda Mazda6 2006 22.7 MPG Highway Percentage 36 percent Mazda Mazda6 Mazda Mazda6 2006 29.6 MPG Highway Percentage 13 percent Mazda Mazda6 Mazda Mazda6 2005 23.1 MPG Highway Percentage 34 percent Mazda Mazda6 Mazda Mazda6 2005 23.0 MPG Highway Percentage 30 percent Mazda Mazda6 Mazda Mazda6 2005 22.4 MPG Highway Percentage 50 percent Mazda Mazda6 Mazda Mazda6 2005 27.9 MPG Highway Percentage 60 percent Mazda Mazda6 Mazda Mazda6 2005 20.0 MPG Highway Percentage 5 percent Mazda Mazda6 Mazda Mazda6 2005 20.1 MPG Highway Percentage 46 percent Mazda Mazda6 Mazda Mazda6 2005 23.3 MPG Highway Percentage 53 percent Mazda Mazda6 Mazda Mazda6 2004 21.9 MPG Highway Percentage 50 percent Mazda Mazda6 Mazda Mazda6 2004 22.5 MPG Highway Percentage 42 percent Mazda Mazda6 Mazda Mazda6 2004 26.7 MPG Highway Percentage 62 percent Mazda Mazda6 Mazda Mazda6 2004 26.0 MPG Highway Percentage 70 percent Mazda Mazda6 Mazda Mazda6 2004 24.3 MPG Highway Percentage 21 percent Mazda Mazda6 Mazda Mazda6 2004 22.0 MPG Highway Percentage 30 percent Mazda Mazda6 Mazda Mazda6 2004 26.0 MPG Highway Percentage 30 percent Mazda Mazda6 Mazda Mazda6 2003 21.8 MPG Highway Percentage 41 percent Mazda Mazda6 Mazda Mazda6 2003 26.7 MPG Highway Percentage 55 percent Mazda Mazda6 Mazda Mazda6 2003 28.3 MPG Highway Percentage 65 percent Mazda Mazda6 Mazda Mazda6 2003 22.8 MPG Highway Percentage 33 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
2017 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 flat med none 0 20 70 10 110 25.0  
2016 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 flat med light 5 20 45 30 70 38.2  
2015 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 flat light light 1 26 30 44 69 30.2  
2014 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 flat med none 8 37 28 26 93 29.4  
2014 4dr Sedan 184-horsepower 2.5L I4
6-speed manual FWD		 hills med light 0 17 10 72 58 36.1  
2011 4dr Sedan 272-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat v.lt none 0 50 14 36 110 18.4  
2011 4dr Sedan 170-horsepower 2.5L I4
5-speed shiftable automatic FWD		 hills med light 15 15 20 50 70 25.5  
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2010 4dr Sedan 272-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat light light 8 67 13 13 103 16.8  
2010 4dr Sedan 170-horsepower 2.5L I4
5-speed shiftable automatic FWD		 flat med none 3 19 35 43 74 27.3  
2009 4dr Sedan 272-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat med light 6 27 20 46 64 22.0  
2009 4dr Sedan 170-horsepower 2.5L I4
6-speed manual FWD		 flat med light 17 16 16 51 81 27.6  
2009 4dr Sedan 170-horsepower 2.5L I4
5-speed shiftable automatic FWD		 flat med none 5 6 33 55 77 25.9  
2008 4dr Sedan 156-horsepower 2.3L I4
5-speed shiftable automatic FWD		 flat light light 12 25 11 53 73 26.4  
2008 4dr Sedan 156-horsepower 2.3L I4
5-speed manual FWD		 flat light none 21 17 52 11 90 20.7  
2007 4dr Sedan turbocharged 270hp 2.3L I4
6-speed manual AWD		 flat med light 5 21 21 53 78 22.9  
2007 4dr Sedan 212-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat med light 3 15 5 78 65 27.5  
2007 4dr Sedan 156-horsepower 2.3L I4
5-speed shiftable automatic FWD		 flat med none 18 11 19 52 70 27.4  
2007 4dr Hatch 156-horsepower 2.3L I4
5-speed shiftable automatic FWD		 flat med none 43 0 17 40 62 27.2  
2007 4dr Hatch 156-horsepower 2.3L I4
5-speed manual FWD		 flat med light 2 21 35 42 74 24.3  
2006 4dr Wagon 215-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat light none 5 25 15 55 60 22.0  
2006 4dr Wagon 215-horsepower 3.0L V6
5-speed manual FWD		 flat med light 0 50 0 50 110 21.7  
2006 4dr Sedan turbocharged 274hp 2.3L I4
6-speed manual AWD		 flat med light 20 19 19 42 72 21.9  
2006 4dr Sedan 215-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat lead none 19 19 25 37 68 23.0  
2006 4dr Sedan 160-horsepower 2.3L I4
5-speed shiftable automatic FWD		 flat light light 16 11 5 68 83 30.1  
2006 4dr Sedan 160-horsepower 2.3L I4
5-speed manual FWD		 flat med light 10 10 10 71 75 26.2  
2006 4dr Hatch 215-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat light light 0 10 20 70 90 22.8  
2006 4dr Hatch 215-horsepower 3.0L V6
5-speed manual FWD		 flat med none 8 30 27 35 82 21.0  
2006 4dr Hatch 160-horsepower 2.3L I4
5-speed shiftable automatic FWD		 flat med light 2 29 34 36 79 22.7  
2006 4dr Hatch 160-horsepower 2.3L I4
5-speed manual FWD		 flat light light 10 37 41 13 96 29.6  
2005 4dr Wagon 215-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat light light 34 9 23 34 72 23.1  
2005 4dr Sedan 215-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat lead hvy 5 15 50 30 75 23.0  
2005 4dr Sedan 215-horsepower 3.0L V6
5-speed manual FWD		 flat med light 3 33 15 50 90 22.4  
2005 4dr Sedan 160-horsepower 2.3L I4
4-speed shiftable automatic FWD		 flat light light 5 11 24 60 69 27.9  
2005 4dr Hatch 215-horsepower 3.0L V6
6-speed shiftable automatic FWD		 flat light light 0 80 15 5 75 20.0  
2005 4dr Hatch 215-horsepower 3.0L V6
5-speed manual FWD		 flat med light 18 24 11 46 72 20.1  
2005 4dr Hatch 160-horsepower 2.3L I4
5-speed manual FWD		 flat med none 6 9 33 53 68 23.3  
2004 4dr Wagon 220-horsepower 3.0L V6
5-speed shiftable automatic FWD		 flat med light 16 18 17 50 71 21.9  
2004 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic FWD		 flat med light 6 16 36 42 70 22.5  
2004 4dr Sedan 220-horsepower 3.0L V6
5-speed manual FWD		 flat med light 9 10 20 62 71 26.7  
2004 4dr Sedan 160-horsepower 2.3L I4
5-speed manual FWD		 flat light none 0 10 20 70 60 26.0  
2004 4dr Sedan 160-horsepower 2.3L I4
4-speed shiftable automatic FWD		 flat light none 8 43 27 21 64 24.3  
2004 4dr Hatch 220-horsepower 3.0L V6
5-speed manual FWD		 flat med none 20 30 20 30 60 22.0  
2004 4dr Hatch 160-horsepower 2.3L I4
4-speed shiftable automatic FWD		 flat light hvy 10 30 30 30 60 26.0  
2003 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic FWD		 flat med none 15 27 17 41 72 21.8  
2003 4dr Sedan 220-horsepower 3.0L V6
5-speed manual FWD		 flat med none 0 9 36 55 69 26.7  
2003 4dr Sedan 160-horsepower 2.3L I4
5-speed manual FWD		 flat med none 7 8 20 65 70 28.3  
2003 4dr Sedan 160-horsepower 2.3L I4
4-speed shiftable automatic FWD		 flat med hvy 16 38 13 33 78 22.8  

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This page shows only averages. See all the Mazda Mazda6 fuel economy data.

GMC Terrain vs. Mazda Mazda6 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 GMC Terrain and Mazda Mazda6'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 GMC models and Mazda models.

TrueDelta Reviews the Real Gas Mileage of the GMC Terrain

GMC Terrain Real Gas Mileage: Pros
YearComment
2018 Diesel engines burn far cleaner than they used to. But even the best retain disadvantages. Diesel fuel is nasty, greasy stuff, with a feel closer to motor oil than gasoline. Spill any on your hands, clothes, shoes, or car while filling up and it doesn't evaporate away like gas does. Also, the GMC Terrain's exhaust stinks, especially when its engine is cold. You might want to have the fresh air vent closed if you'll be reversing after starting up the vehicle. Given these disadvantages, a diesel better deliver strong EPA fuel economy ratings, and this four-wheel-drive GMC does: 28 mpg city, 38 mpg highway. (Dropping 4WD adds another mpg to the highway rating.) The Jaguar F-Pace diesel lags, with 26/33, as might be expected given its larger (2.0- vs. 1.6-liter), considerably more powerful (180- vs. 137-horsepower) engine. The RAV4 Hybrid is more economical in city driving, with an EPA rating of 34 mpg, but well behind in highway driving, with an EPA rating of 30. This is typical of diesel vs. hybrid comparisons, as hybrids are designed to recoup energy otherwise burned off by the brakes and thus deliver the largest bump in city driving. Even more than with most vehicles I test, the Terrain diesel's real-world fuel economy varied dramatically based on driving style and conditions. In the suburbs, trip computer averages ranged from 25 to 40 mpg, with most results around 30. On the highway, the trip computer reported low 40s in one direction, then low 30s in the other (on two different days, with no especially strong wind on either). In a suburban test drive of the Toyota RAV4 Hybrid, the highest trip computer average I could achieve was 38 mpg. Quite good for a compact crossover, and nearly even with the best suburban average I observed in the Terrain diesel. Compared to a Terrain with the standard gas engine, the diesel rates four mpg high in the city and ten mpg higher on the highway. Compared to the Terrain with its base gasoline engine, the Jeep Compass rates lower in the city (22 vs. 24 mpg) but higher on the highway (30 vs. 28 mpg), so gas-to-gas they're about even. see full GMC Terrain review
GMC Terrain Real Gas Mileage: Cons
YearComment
2010 On a positive note, the larger V6 earns the same EPA fuel economy ratings as the old one. On a less positive note, it also earns the same fuel economy ratings as the much larger, 4,850-pound Acadia: 16 city, 23 highway. In suburban driving the trip computer reported high teens to low twenties, a few mpg below lighter, more compact competitors. The four-cylinder gets 22/32 with FWD, 20/29 with AWD, but many owners have failed to approach these numbers in the real world. see full GMC Terrain review
 

What Our Members Are Saying about the Real Gas Mileage of the GMC Terrain

GMC Terrain Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 Although I have never seen this truck get the estimated fuel economy it boasts about in advertising, considering the shear mass of it and it's breadbox front end, with the I4 the fuel economy is very good considering it is a heavy little beast with AWD. I can average 700 kms. out of a tank of fuel no problem and on longer jaunts have seen it break 800 kms. If you are one of those people who complain about fuel consumption in this truck- you should have bought a Prius... because for what it is, it is exceptional on fuel. Try a different brand of fuel for a while, some brands have more additives and burn quicker. see full GMC Terrain review
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 Compared to our current vehicle, we estimated approx. $75/month in fuel savings. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 Main reason for purchasing was we wanted a vehicle that was AWD, could tow small loads and would get reasonable fule mileage. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 Fuel economy was a big factor in purchase decision. Real world mileage not really close to 32 epa rating, but still pretty decent for a big, comfy station wagon-esque vehicle. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 29 highway is good for a vehicle of this size see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 awesome, average is 7.5 liters/100 kms see full GMC Terrain review
GMC Terrain Real Gas Mileage: Cons
YearBody/PowertrainComment
2015 4dr SUV 301-horsepower 3.6L V6
6-speed shiftable automatic AWD		 Fuel economy, for a vehicle over 4,000lbs, and a 300hp V6 engine, is going to be low. But at between 15-18mpg, for suburban driving, it seems a bit low. I wanted to the V6 so it would not struggle, and I did that knowing the MPG's were not great, but I hoped it would be better on the highway. What I found most disappointing, was that with the V6, you don't get an "economy" switch. The 4 cylinder version does, but not the V6. Why does this matter? Because with a V6, with much more power than a 4 cylinder, using economy mode would not feel bad. On the Terrain, with the 4 cylinder you are starting with less, so taking away from less isn't alwyas good. But taking away from the V6, would not be as impacting. see full GMC Terrain review
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 doesnt get near what they say it will get. worse then the last 2.4 I-4 engine I had.(2006 HHR) see full GMC Terrain review
2011 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic AWD		 We are getting about 14 miles to the gallon. Worst 3.0 litter i have ever owned see full GMC Terrain review
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 You get 32 mph/gal ONLY if you set the cruze and stay at or below 55mph. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 Vehicle doesn't come close to 32 mpg highway spec. Average is 26-27 mpg. Big disappointment given the marketing of the vehicle. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 First trip fuel mileage 618 km on 65 liters of fuel. Terrian has 30000 KM on it. Trip was driven at 100 KM very little idle time. see full GMC Terrain review
2010 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic FWD		 Have less than 500 miles on vehicle and just got 24 mpg on highway with cruise set at 68. see full GMC Terrain review
 

TrueDelta Reviews the Real Gas Mileage of the Mazda Mazda6

Mazda Mazda6 Real Gas Mileage: Pros
YearComment
2014 This year every Mazda6 has a 184-horsepower 2.5-liter four-cylinder engine under its hood. The 2013's less powerful (170hp) 2.5-liter four managed only 21 mpg city, 30 highway. The 2014 does far better: 26/38 with the automatic transmission and 25/37 with the manual. When fitted with a 178-horsepower 1.6-liter turbocharged four-cylinder engine and manual transmission, the Ford Fusion earns identical EPA ratings. An Accord with a 189-horsepower 2.4-liter and manual transmission checks in lower, 24/34. In real world driving, the trip computer reported averages in the 30s--and as high as 38--in casual suburban driving and about 36 on a 70-mph highway. With such impressive numbers, I'm tempted to place fuel economy higher in the reasons to buy a Mazda6. see full Mazda Mazda6 review
 

What Our Members Are Saying about the Real Gas Mileage of the Mazda Mazda6

Mazda Mazda6 Real Gas Mileage: Pros
YearBody/PowertrainComment
2017 4dr Sedan 184-horsepower 2.5L I4
6-speed manual FWD		 I've been averaging over 30 mpg per tank at the pump. Computer usually 1mpg too generous. On some trips I've seen 40 mpgs. My is MT and it is rated considerably lower than AT. But in my book it is good since I've done same mileage in my 2011 Mazda3, which also was noisier, less comforting and generally, smaller car with smaller engine. So, I do about same MPG average and HWY as my 2011 Mazda3 see full Mazda Mazda6 review
2016 4dr Sedan 143-horsepower 2.0L I4
6-speed shiftable automatic FWD		 This vehicle is a petrol automatic and the fuel economy is not too bad - around town its pretty good but out on the Motorway at 70 - 80 mph it is hardly any better than my previous 15 year old Volvo S80 petrol automaticwhich had a 5 cylinder 2.4 litre (this is a 2.0 litre less powerful engine) and weighed an awful lot more. Its giving aroun 40 mpg. The istop system seems to be a waste of money - it saves virtually nothing, you have to press hard on the brake pedal to make it work and the miles its claims to have saved are minimal - about 20 in 8,000. see full Mazda Mazda6 review
2016 4dr Sedan 143-horsepower 2.0L I4
6-speed shiftable automatic FWD		 The fuel economy on this car is pretty good in my opinion. Its a petrol automatic and if I do half a tank of fuel on Motorways with the speedo at 80 - 85 and the rest of the tank around town I will see 40 MPG. I don;t think one can complain too much about this. If I do all short journeys and no motorway mileage I can probably get around 35, which again is pretty good. see full Mazda Mazda6 review
2014 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 Fuel economy is good but not as good as Mazda claims, in 9 months I'm averaging about 28 MPG combined in 60/40 city to highway driving and now in the winter months here in Minnesota, where you need to let the vehicle warm up for a minute or two in cold weather conditions and using winter gas. Still better than most cars in this class and the Skyactiv weight reducing and engine and transmission improvements really do seem to contribute to a fuel efficient car that is still fun to drive and nice to look at! see full Mazda Mazda6 review
2014 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 26/38 rating is better than other sedans in its class. Averaging 32 with daily up and down mountain treks. Car maintains speed well and uses little gas keeping speed up. see full Mazda Mazda6 review
2014 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 Fuel economy over 71k has been 32.1 MPG. Pretty darn good for a non-hybrid and driving 75-85 mph pretty consistently. see full Mazda Mazda6 review
2014 4dr Sedan 184-horsepower 2.5L I4
6-speed shiftable automatic FWD		 I regularly get 33-34 mpg commuting 35-55 mph with some stop and go driving distances of 30+ miles each way. Constant speed driving on interstates through central PA, DC, VA, CT, RI, with seldom slow traffic backups, the car gets 36-37 mpg. Usually set at about 3-4 miles over posted or at traffic flow speeds. see full Mazda Mazda6 review
2009 4dr Sedan 170-horsepower 2.5L I4
6-speed manual FWD		 So far seems higher than EPA estimates. Gearing close so that I can drive 30-40 around town in 5ht or even 6th. 6th should be further out to improve mileage even more. see full Mazda Mazda6 review
2009 4dr Sedan 170-horsepower 2.5L I4
6-speed manual FWD		 28.5 mpg. Driving to the interstate, taking the interstate to the other side of town, then driving to work (or home). see full Mazda Mazda6 review
2009 4dr Sedan 170-horsepower 2.5L I4
5-speed shiftable automatic FWD		 The fuel economy is in the upper range of the norm for this class of car. see full Mazda Mazda6 review
Mazda Mazda6 Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Sedan 170-horsepower 2.5L I4
5-speed shiftable automatic FWD		 i like the power feeling which that engine can provide only above 4000 rpms, and than it drinks :) see full Mazda Mazda6 review
2009 4dr Sedan 272-horsepower 3.7L V6
6-speed shiftable automatic FWD		 Well, the 4 cylinder was wonderful, averaging 25mpg, but the large 3.7 seems to be averaging around 21/22...not much better, if not the same, than the Lincoln MKS. But I DO drive this car really hard. Its difficult not to, its so much fun. see full Mazda Mazda6 review
2009 4dr Sedan 272-horsepower 3.7L V6
6-speed shiftable automatic FWD		 Hmmm...yes, this is the sore point. But to tell you the truth, I am getting a little tired of pursueing one at the loss of the other. And do enjoy regular gas. see full Mazda Mazda6 review
2007 4dr Sedan 156-horsepower 2.3L I4
5-speed shiftable automatic FWD		 I get only 26mpg highway and 19-21 mpg city with 4 cylinder. My other car (toyota solara) do over 33 mpg highway easily even with winter gas. see full Mazda Mazda6 review
2007 4dr Wagon 212-horsepower 3.0L V6
6-speed shiftable automatic FWD		 The Ford 3.0L engine isn't particular good on gas, nor is it particularly powerful see full Mazda Mazda6 review
2007 4dr Sedan 156-horsepower 2.3L I4
5-speed shiftable automatic FWD		 it is very hard to get more than 27 mpg even with all highway drive see full Mazda Mazda6 review
2006 4dr Hatch 215-horsepower 3.0L V6
6-speed shiftable automatic FWD		 The only minor complaints I have about this car comes from the engine. It puts out slightly less horsepower than racing engines of the same size, but eats just as much gas, roughly 15% more than I expected from an engine this size. This is something Mazda has drastically improved in recent years, but remains something to watch out for in their larger engines before 2010. see full Mazda Mazda6 review
2006 4dr Sedan turbocharged 274hp 2.3L I4
6-speed manual AWD		 26mpg was the most I got on one long trip down south. I drove it mostly highway and usually got 21mpg, even when taking it easy. Around town I got 18mpg. Not great for a 4-cyl engine. My Saab has almost as much power and gets 24mpg around town. see full Mazda Mazda6 review
2006 4dr Sedan turbocharged 274hp 2.3L I4
6-speed manual AWD		 Not very good unless you are on the highway only cruising. On the highway it can get 28+ mpg. However, in mixed driving you will be lucky to get 20 mpg. see full Mazda Mazda6 review
2006 4dr Sedan turbocharged 274hp 2.3L I4
6-speed manual AWD		 Not necessarily a dislike, just a natural trade off for having 270 horsepower on tap. Averaging 22mpg with mostly city and traffic driving. It actually still bests my old 00 VW Golf turbo, which typically mustered only 20mpg with half the horsepower! see full Mazda Mazda6 review