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Hyundai Sonata vs. Mazda RX-8 MPG

Chart is based on 452 fuel economy reports for the Hyundai Sonata and 202 fuel economy reports for the Mazda RX-8.

Hyundai Sonata MPG

Hyundai Sonata Hyundai Sonata 2021 33.2 MPG Highway Percentage 20 percent Hyundai Sonata Hyundai Sonata 2018 32.9 MPG Highway Percentage 81 percent Hyundai Sonata Hyundai Sonata 2017 29.2 MPG Highway Percentage 30 percent Hyundai Sonata Hyundai Sonata 2016 48.5 MPG Highway Percentage 86 percent Hyundai Sonata Hyundai Sonata 2015 39.8 MPG Highway Percentage 80 percent Hyundai Sonata Hyundai Sonata 2014 27.1 MPG Highway Percentage 70 percent Hyundai Sonata Hyundai Sonata 2014 39.7 MPG Highway Percentage 93 percent Hyundai Sonata Hyundai Sonata 2014 38.5 MPG Highway Percentage 75 percent Hyundai Sonata Hyundai Sonata 2013 34.2 MPG Highway Percentage 90 percent Hyundai Sonata Hyundai Sonata 2012 20.2 MPG Highway Percentage 30 percent Hyundai Sonata Hyundai Sonata 2012 27.0 MPG Highway Percentage 30 percent Hyundai Sonata Hyundai Sonata 2012 32.7 MPG Highway Percentage 29 percent Hyundai Sonata Hyundai Sonata 2011 27.0 MPG Highway Percentage 60 percent Hyundai Sonata Hyundai Sonata 2011 28.8 MPG Highway Percentage 43 percent Hyundai Sonata Hyundai Sonata 2011 31.6 MPG Highway Percentage 62 percent Hyundai Sonata Hyundai Sonata 2011 30.4 MPG Highway Percentage 60 percent Hyundai Sonata Hyundai Sonata 2011 34.1 MPG Highway Percentage 54 percent Hyundai Sonata Hyundai Sonata 2010 29.1 MPG Highway Percentage 66 percent Hyundai Sonata Hyundai Sonata 2009 26.2 MPG Highway Percentage 50 percent Hyundai Sonata Hyundai Sonata 2009 30.0 MPG Highway Percentage 63 percent Hyundai Sonata Hyundai Sonata 2009 23.5 MPG Highway Percentage 41 percent Hyundai Sonata Hyundai Sonata 2008 26.9 MPG Highway Percentage 73 percent Hyundai Sonata Hyundai Sonata 2008 31.8 MPG Highway Percentage 57 percent Hyundai Sonata Hyundai Sonata 2008 31.2 MPG Highway Percentage 72 percent Hyundai Sonata Hyundai Sonata 2007 23.7 MPG Highway Percentage 50 percent Hyundai Sonata Hyundai Sonata 2007 29.3 MPG Highway Percentage 46 percent Hyundai Sonata Hyundai Sonata 2007 27.0 MPG Highway Percentage 54 percent Hyundai Sonata Hyundai Sonata 2006 21.1 MPG Highway Percentage 31 percent Hyundai Sonata Hyundai Sonata 2006 31.5 MPG Highway Percentage 62 percent Hyundai Sonata Hyundai Sonata 2006 27.5 MPG Highway Percentage 51 percent Hyundai Sonata Hyundai Sonata 2005 23.6 MPG Highway Percentage 72 percent Hyundai Sonata Hyundai Sonata 2005 24.0 MPG Highway Percentage 40 percent Hyundai Sonata Hyundai Sonata 2004 21.2 MPG Highway Percentage 37 percent Hyundai Sonata Hyundai Sonata 2004 18.4 MPG Highway Percentage 28 percent Hyundai Sonata Hyundai Sonata 2003 23.0 MPG Highway Percentage 36 percent Hyundai Sonata Hyundai Sonata 2003 19.7 MPG Highway Percentage 15 percent Hyundai Sonata Hyundai Sonata 2002 27.9 MPG Highway Percentage 50 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
2021 4dr Sedan 191-horsepower 2.5L I4
8-speed shiftable automatic FWD
flat light hvy 0 10 70 20 75 33.2  
2018 4dr Sedan 185-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat med hvy 8 4 9 81 78 32.9  
2017 4dr Sedan 185-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat med light 0 0 70 30 75 29.2  
2016 4dr Sedan 154-horsepower 2.0L I4 Hybrid
6-speed shiftable automatic FWD
flat light hvy 2 7 6 86 66 48.5  
2015 4dr Sedan turbocharged 178hp 1.6L I4
7-speed automated manual FWD
flat v.lt light 0 0 20 80 60 39.8  
2014 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
flat med light 5 15 10 70 70 27.1  
2014 4dr Sedan 190-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat v.lt light 2 2 3 93 70 39.7  
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2014 4dr Sedan 159-horsepower 2.4L I4 Hybrid
6-speed shiftable automatic FWD
flat light light 1 2 22 75 66 38.5  
2013 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
flat light light 0 0 10 90 75 34.2  
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
flat light light 10 39 21 30 69 20.2  
2012 4dr Sedan 198-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat med light 25 20 25 30 73 27.0  
2012 4dr Sedan 166-horsepower 2.4L I4 Hybrid
6-speed shiftable automatic FWD
flat med light 7 48 16 29 98 32.7  
2011 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
flat med light 9 14 18 60 74 27.0  
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat light light 9 13 35 43 70 28.8  
2011 4dr Sedan 198-horsepower 2.4L I4
6-speed shiftable automatic FWD
flat light light 4 18 16 62 70 31.6  
2011 4dr Sedan 198-horsepower 2.4L I4
6-speed manual FWD
flat med light 1 28 12 60 68 30.4  
2011 4dr Sedan 166-horsepower 2.4L I4 Hybrid
6-speed shiftable automatic FWD
hills light light 5 6 35 54 61 34.1  
2010 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 5 5 24 66 76 29.1  
2009 4dr Sedan 249-horsepower 3.3L V6
5-speed shiftable automatic FWD
flat med none 8 25 18 50 62 26.2  
2009 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
flat light light 3 7 28 63 68 30.0  
2009 4dr Sedan 175-horsepower 2.4L I4
5-speed manual FWD
flat light light 13 31 14 41 65 23.5  
2008 4dr Sedan 234-horsepower 3.3L V6
5-speed shiftable automatic FWD
hills med light 0 25 2 73 75 26.9  
2008 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD
flat med light 6 12 26 57 68 31.8  
2008 4dr Sedan 162-horsepower 2.4L I4
4-speed shiftable automatic FWD
flat light light 7 7 15 72 68 31.2  
2007 4dr Sedan 234-horsepower 3.3L V6
5-speed shiftable automatic FWD
flat med light 12 13 25 50 72 23.7  
2007 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD
flat med light 9 18 27 46 71 29.3  
2007 4dr Sedan 162-horsepower 2.4L I4
4-speed shiftable automatic FWD
flat light light 14 12 19 54 75 27.0  
2006 4dr Sedan 235-horsepower 3.3L V6
5-speed shiftable automatic FWD
flat med light 6 37 26 31 70 21.1  
2006 4dr Sedan 162-horsepower 2.4L I4
5-speed manual FWD
hills light light 10 13 14 62 63 31.5  
2006 4dr Sedan 162-horsepower 2.4L I4
4-speed shiftable automatic FWD
flat med light 10 17 22 51 75 27.5  
2005 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD
flat med hvy 2 3 25 72 68 23.6  
2005 4dr Sedan 138-horsepower 2.4L I4
4-speed shiftable automatic FWD
flat med none 10 45 5 40 60 24.0  
2004 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD
flat med light 2 18 43 37 70 21.2  
2004 4dr Sedan 138-horsepower 2.4L I4
4-speed shiftable automatic FWD
flat med hvy 8 20 45 28 68 18.4  
2003 4dr Sedan 170-horsepower 2.7L V6
4-speed shiftable automatic FWD
flat light light 9 17 39 36 76 23.0  
2003 4dr Sedan 138-horsepower 2.4L I4
4-speed shiftable automatic FWD
flat light light 15 48 23 15 70 19.7  
2002 4dr Sedan 149-horsepower 2.4L I4
4-speed shiftable automatic FWD
flat med light 5 15 30 50 120 27.9  

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This page shows only averages. See all the Hyundai Sonata fuel economy data.

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.

Hyundai Sonata vs. Mazda RX-8 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 Hyundai Sonata and Mazda RX-8'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 Hyundai models and Mazda models.

TrueDelta Reviews the Real Gas Mileage of the Hyundai Sonata

Hyundai Sonata Real Gas Mileage: Cons
YearComment
In fuel economy as well the 2013 Hyundai Sonata has lost an earlier lead. EPA ratings of 24 mpg city, 35 highway, impressive two years ago, can't match the 2014 Mazda6's 26/38 or the 2013 Altima's 27/38 today. The trip computer reported about 25 in my regular suburban driving, a bit over 30 if I engaged in some mild hypermiling, and about 34 on the highway. When mildly hypermiling the Altima for a few miles its trip computer average approached 40. While trip computers aren't always accurate, others have also reported impressive fuel economy from the Altima. The Mazda has a smaller edge, but an edge nonetheless. see full Hyundai Sonata review
 

What Our Members Are Saying about the Real Gas Mileage of the Hyundai Sonata

Hyundai Sonata Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 4dr Sedan 198-horsepower 2.4L I4
6-speed shiftable automatic FWD
With just over 1400 miles so far, it is averaging 28.3mpg combined with the eco option turned off. It has the eco drive option which works well in sustained at speed driving but lags in demanding driving situations. see full Hyundai Sonata review
2013 4dr Sedan 198-horsepower 2.4L I4
6-speed shiftable automatic FWD
The fuel economy is pretty good for a car of this size. I have averaged 36.5mpg (imperial gallon) over the last 37000km. 85% highway, 110km/h and little sitting in traffic. It gets very cold here sometimes so the mileage suffers. In Dec/Jan when it reaches -30 C (or colder), I get about 33mpg and in the summer about 40mpg. My best was 44mpg in the summer and worst was 31mpg in mid-winter when the car was new and not broken in. I keep track of the mileage with an app on my cell phone so the numbers above are exact. see full Hyundai Sonata review
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
better than Honda or Santa Fe see full Hyundai Sonata review
2011 4dr Sedan 198-horsepower 2.4L I4
6-speed shiftable automatic FWD
35 mpg for a full size car see full Hyundai Sonata review
2011 4dr Sedan 198-horsepower 2.4L I4
6-speed shiftable automatic FWD
With less than 1,000 miles I observed 37mpg on the highway. see full Hyundai Sonata review
2011 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
Performance of a V6 with the economy of a 4 cyl. see full Hyundai Sonata review
2011 4dr Sedan 200-horsepower 2.4L I4
6-speed shiftable automatic FWD
Average 24 mpg in town and typically get 38 mpg on trips. All in a large family sedan. Uses regular gas. see full Hyundai Sonata review
2009 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
The I4 gets about 33 mpg for me in mixed driving. It still has plenty of power at 175 HP and is a quiet smooth engine. This is the first 4 cylinder I have ever owned and so far it has performed well. see full Hyundai Sonata review
2009 4dr Sedan 175-horsepower 2.4L I4
5-speed shiftable automatic FWD
decent for all around use see full Hyundai Sonata review
2009 4dr Sedan 249-horsepower 3.3L V6
5-speed shiftable automatic FWD
24-25 mpg city 30+ highway see full Hyundai Sonata review
Hyundai Sonata Real Gas Mileage: Cons
YearBody/PowertrainComment
2013 4dr Sedan 198-horsepower 2.4L I4
6-speed shiftable automatic FWD
I do a lot of rural driving and the MPG struggles to reach 22mpg. I really expected the mpg to be higher. see full Hyundai Sonata review
2012 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD
Dreadful fuel economy. For long highway drives, the Sonata Turbo can indeed match the 34 mpg EPA rating, but for city driving with A/C, you'll be lucky to get any more than 17 mpg. Even with A/C off, the urban mileage never hits the 20 mpg level. Only 2,700 miles on the engine so far, so this may get better, but the EPA city estimate seems to be pegged too high by Hyundai. see full Hyundai Sonata review
2006 4dr Sedan 235-horsepower 3.3L V6
5-speed shiftable automatic FWD
not as good as some competition see full Hyundai Sonata review
2006 4dr Sedan 162-horsepower 2.4L I4
4-speed shiftable automatic FWD
I expect more MPG out of a modern I4 engine, as compared to my 10-year Accord. see full Hyundai Sonata review
 

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