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Mazda RX-8 vs. Mazda CX-9 MPG

Chart is based on 202 fuel economy reports for the Mazda RX-8 and 335 fuel economy reports for the Mazda CX-9.

Mazda RX-8 MPG

Mazda RX-8 Mazda RX-8 2010 17.1 MPG Highway Percentage 55 percent Mazda RX-8 Mazda RX-8 2009 17.5 MPG Highway Percentage 53 percent Mazda RX-8 Mazda RX-8 2008 20.9 MPG Highway Percentage 67 percent Mazda RX-8 Mazda RX-8 2007 18.4 MPG Highway Percentage 33 percent Mazda RX-8 Mazda RX-8 2007 22.5 MPG Highway Percentage 51 percent Mazda RX-8 Mazda RX-8 2006 19.1 MPG Highway Percentage 67 percent Mazda RX-8 Mazda RX-8 2006 17.3 MPG Highway Percentage 3 percent Mazda RX-8 Mazda RX-8 2005 18.6 MPG Highway Percentage 60 percent Mazda RX-8 Mazda RX-8 2004 17.5 MPG Highway Percentage 44 percent Mazda RX-8 Mazda RX-8 2004 17.3 MPG Highway Percentage 23 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
2010 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med light 1 22 22 55 74 17.1  
2009 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med none 2 16 29 53 68 17.5  
2008 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med light 3 16 15 67 72 20.9  
2007 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 flat med none 5 14 48 33 79 18.4  
2007 4dr Coupe 212-horsepower 1.3L R2
6-speed shiftable automatic RWD		 flat med light 15 24 10 51 78 22.5  
2006 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 flat med none 9 10 13 67 66 19.1  
2006 4dr Coupe 212-horsepower 1.3L R2
6-speed shiftable automatic RWD		 flat med light 5 28 65 3 60 17.3  
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2005 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 flat med light 6 16 18 60 77 18.6  
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 flat med light 7 25 24 44 77 17.5  
2004 4dr Coupe 197-horsepower 1.3L R2
4-speed shiftable automatic RWD		 flat lead light 42 12 23 23 70 17.3  

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This page shows only averages. See all the Mazda RX-8 fuel economy data.

Mazda CX-9 MPG

Mazda CX-9 Mazda CX-9 2019 25.2 MPG Highway Percentage 50 percent Mazda CX-9 Mazda CX-9 2017 19.7 MPG Highway Percentage 40 percent Mazda CX-9 Mazda CX-9 2013 21.1 MPG Highway Percentage 5 percent Mazda CX-9 Mazda CX-9 2012 20.2 MPG Highway Percentage 97 percent Mazda CX-9 Mazda CX-9 2012 16.5 MPG Highway Percentage 15 percent Mazda CX-9 Mazda CX-9 2011 17.1 MPG Highway Percentage 21 percent Mazda CX-9 Mazda CX-9 2011 19.3 MPG Highway Percentage 55 percent Mazda CX-9 Mazda CX-9 2010 18.4 MPG Highway Percentage 37 percent Mazda CX-9 Mazda CX-9 2010 14.5 MPG Highway Percentage 29 percent Mazda CX-9 Mazda CX-9 2009 18.7 MPG Highway Percentage 14 percent Mazda CX-9 Mazda CX-9 2009 17.9 MPG Highway Percentage 50 percent Mazda CX-9 Mazda CX-9 2008 19.7 MPG Highway Percentage 68 percent Mazda CX-9 Mazda CX-9 2008 19.0 MPG Highway Percentage 54 percent Mazda CX-9 Mazda CX-9 2007 19.7 MPG Highway Percentage 43 percent Mazda CX-9 Mazda CX-9 2007 18.3 MPG Highway Percentage 54 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
2019 4dr SUV turbocharged 250hp 2.5L I4
6-speed shiftable automatic AWD		 flat light none 0 50 0 50 50 25.2  
2017 4dr SUV turbocharged 250hp 2.5L I4
6-speed shiftable automatic AWD		 flat med none 5 5 50 40 75 19.7  
2013 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 0 95 0 5 70 21.1  
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 hills med none 0 0 4 97 78 20.2  
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat med light 0 5 80 15 70 16.5  
2011 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat med hvy 44 20 15 21 64 17.1  
2011 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 0 10 35 55 63 19.3  
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2010 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat light light 33 17 13 37 63 18.4  
2010 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 hills light none 6 48 17 29 73 14.5  
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 hills med light 5 19 61 14 62 18.7  
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat med none 7 26 18 50 66 17.9  
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 flat med light 4 15 13 68 72 19.7  
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 flat light light 6 15 25 54 70 19.0  
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic FWD		 flat med hvy 13 19 25 43 67 19.7  
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic AWD		 flat light none 10 20 16 54 69 18.3  

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This page shows only averages. See all the Mazda CX-9 fuel economy data.

Mazda RX-8 vs. Mazda CX-9 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 Mazda RX-8 and Mazda CX-9'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 Coupes
See TrueDelta's information for all Mazda models.

What Our Members Are Saying about the Real Gas Mileage of the Mazda RX-8

Mazda RX-8 Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Coupe 232-horsepower 1.3L R2
6-speed manual RWD		 One of the big downsides of the rotary is truly horrendous fuel economy. When the RX-8 first came out in the early 2000s, its mileage ratings of 16/22 city/highway mpg (stick shift) were just barely acceptable, but there days, with many crossovers hitting more than 30 mpg on the highway, those figures are truly atrocious, especially given respectable but certainly not neck-snapping power. Futhermore, it takes premium. If you're using the RX-8 as it commuter, fuel costs will add up quickly. In my predominantly around-town driving, I typically average between 16-17 mpg. My highest recorded average was 20 mpg on a highway trip at speeds around 75 mph. see full Mazda RX-8 review
2007 4dr Coupe 212-horsepower 1.3L R2
6-speed shiftable automatic RWD		 The EPA numbers are way low compared with my real-world experience. The window sticker showed 18/25 and I have never seen less than 23 with my 40/60 city/highway commute. I think Mazda should develop a lean-burn economy cruise mode for this car. see full Mazda RX-8 review
2006 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 Lite bit to high consumption when I drive it in normal speed. On full woot its ok. see full Mazda RX-8 review
2005 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 Worst fuel economy in its class. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 Not that bad for what it is, but it seems to me that Mazda's Sky Active technology could help the city mileage. It just needs more R&D. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 At 16 m.p.g. on premium grade these days it could be cheaper to take a taxi. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 For a small engine displacement and a relatively light vehicle weight, the gas mileage is weak. I usualy get around 19mpg, and that does not realy matter if I am doing all city or all highway driving. I think the real problem is in the sixth gear it isnt much different than fifth gear so it does not provide good fuel economy. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 For a car with a 1.9 liter engine I would have expected better than 16-19 MPG. Get your foot into it and the numbers fall drastically. Otherwise I loved that car. It just got too small with a newborn and a big dog. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 I gets 20MPG no matter what I do. Running around 20. 1/2 highway 20. All the highway all day 25-26. I think that it could do better. see full Mazda RX-8 review
2004 4dr Coupe 238-horsepower 1.3L R2
6-speed manual RWD		 16-18MPG city, 24MPG highway see full Mazda RX-8 review
 

What Our Members Are Saying about the Real Gas Mileage of the Mazda CX-9

Mazda CX-9 Real Gas Mileage: Pros
YearBody/PowertrainComment
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 avg 18mpg for a large vehicle see full Mazda CX-9 review
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic FWD		 Uses regular gas. I have been getting about 19-20 MPG with mostly rush hour highway driving. see full Mazda CX-9 review
Mazda CX-9 Real Gas Mileage: Cons
YearBody/PowertrainComment
2012 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 EPA ratings of 17/24, but I've averaged barely 18 overall in my first 1200 miles...hoping for a slight improvement after break-in. UPDATE- as of 02/11/2013, I am averaging 20-21mpg overall with 4200 miles on the clock. On a recent 380-mile interstate trip, I managed 22.8mpg with the cruise set at 80mph. see full Mazda CX-9 review
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 A bit lower than the competitions see full Mazda CX-9 review
2009 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 in city gives about 13-14 mpg. Highway is still good. I can get 21-23 mpg on highways see full Mazda CX-9 review
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic AWD		 The AWD feature does use more gas than a FWD vehicle. Averages about 17-18 city and about 20 highway. see full Mazda CX-9 review
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 The fuel economy was lower than for the Murano. The plus is that it uses regular. see full Mazda CX-9 review
2008 4dr SUV 273-horsepower 3.7L V6
6-speed shiftable automatic FWD		 too low see full Mazda CX-9 review
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic AWD		 Could be better. I have seen 24mpg as a high on the highway....but usually closer to 21-22. Around town is 17-18. see full Mazda CX-9 review
2007 4dr SUV 263-horsepower 3.5L V6
6-speed shiftable automatic AWD		 Around town mileage is low. see full Mazda CX-9 review