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Subaru Legacy vs. Mazda RX-8 MPG

Chart is based on 405 fuel economy reports for the Subaru Legacy and 202 fuel economy reports for the Mazda RX-8.

Subaru Legacy MPG

Subaru Legacy Subaru Legacy 2017 32.3 MPG Highway Percentage 90 percent Subaru Legacy Subaru Legacy 2016 30.0 MPG Highway Percentage 50 percent Subaru Legacy Subaru Legacy 2015 31.0 MPG Highway Percentage 77 percent Subaru Legacy Subaru Legacy 2013 24.4 MPG Highway Percentage 47 percent Subaru Legacy Subaru Legacy 2013 28.2 MPG Highway Percentage 41 percent Subaru Legacy Subaru Legacy 2012 32.0 MPG Highway Percentage 88 percent Subaru Legacy Subaru Legacy 2012 25.0 MPG Highway Percentage 35 percent Subaru Legacy Subaru Legacy 2011 22.0 MPG Highway Percentage 43 percent Subaru Legacy Subaru Legacy 2011 21.0 MPG Highway Percentage 15 percent Subaru Legacy Subaru Legacy 2011 27.0 MPG Highway Percentage 43 percent Subaru Legacy Subaru Legacy 2011 25.0 MPG Highway Percentage 10 percent Subaru Legacy Subaru Legacy 2010 23.9 MPG Highway Percentage 52 percent Subaru Legacy Subaru Legacy 2010 26.5 MPG Highway Percentage 74 percent Subaru Legacy Subaru Legacy 2010 28.5 MPG Highway Percentage 67 percent Subaru Legacy Subaru Legacy 2010 21.4 MPG Highway Percentage 15 percent Subaru Legacy Subaru Legacy 2009 39.4 MPG Highway Percentage 85 percent Subaru Legacy Subaru Legacy 2009 24.9 MPG Highway Percentage 45 percent Subaru Legacy Subaru Legacy 2009 23.7 MPG Highway Percentage 57 percent Subaru Legacy Subaru Legacy 2009 20.4 MPG Highway Percentage 22 percent Subaru Legacy Subaru Legacy 2009 25.5 MPG Highway Percentage 46 percent Subaru Legacy Subaru Legacy 2008.5 18.4 MPG Highway Percentage 10 percent Subaru Legacy Subaru Legacy 2008 20.4 MPG Highway Percentage 30 percent Subaru Legacy Subaru Legacy 2008 27.1 MPG Highway Percentage 60 percent Subaru Legacy Subaru Legacy 2008 23.4 MPG Highway Percentage 36 percent Subaru Legacy Subaru Legacy 2008 23.4 MPG Highway Percentage 57 percent Subaru Legacy Subaru Legacy 2008 26.9 MPG Highway Percentage 81 percent Subaru Legacy Subaru Legacy 2008 27.8 MPG Highway Percentage 65 percent Subaru Legacy Subaru Legacy 2008 24.9 MPG Highway Percentage 40 percent Subaru Legacy Subaru Legacy 2007 24.6 MPG Highway Percentage 88 percent Subaru Legacy Subaru Legacy 2007 21.3 MPG Highway Percentage 62 percent Subaru Legacy Subaru Legacy 2007 24.6 MPG Highway Percentage 26 percent Subaru Legacy Subaru Legacy 2007 26.4 MPG Highway Percentage 40 percent Subaru Legacy Subaru Legacy 2007 29.5 MPG Highway Percentage 85 percent Subaru Legacy Subaru Legacy 2006 21.1 MPG Highway Percentage 63 percent Subaru Legacy Subaru Legacy 2006 28.4 MPG Highway Percentage 80 percent Subaru Legacy Subaru Legacy 2006 27.6 MPG Highway Percentage 62 percent Subaru Legacy Subaru Legacy 2006 22.4 MPG Highway Percentage 48 percent Subaru Legacy Subaru Legacy 2006 29.9 MPG Highway Percentage 90 percent Subaru Legacy Subaru Legacy 2006 33.0 MPG Highway Percentage 70 percent Subaru Legacy Subaru Legacy 2005 21.8 MPG Highway Percentage 44 percent Subaru Legacy Subaru Legacy 2005 21.8 MPG Highway Percentage 42 percent Subaru Legacy Subaru Legacy 2005 27.1 MPG Highway Percentage 65 percent Subaru Legacy Subaru Legacy 2005 28.6 MPG Highway Percentage 58 percent Subaru Legacy Subaru Legacy 2005 20.3 MPG Highway Percentage 43 percent Subaru Legacy Subaru Legacy 2005 22.2 MPG Highway Percentage 63 percent Subaru Legacy Subaru Legacy 2005 25.6 MPG Highway Percentage 20 percent Subaru Legacy Subaru Legacy 2005 26.1 MPG Highway Percentage 45 percent Subaru Legacy Subaru Legacy 2004 29.0 MPG Highway Percentage 55 percent Subaru Legacy Subaru Legacy 2003 19.8 MPG Highway Percentage 58 percent Subaru Legacy Subaru Legacy 2003 20.6 MPG Highway Percentage 7 percent Subaru Legacy Subaru Legacy 2003 28.5 MPG Highway Percentage 73 percent Subaru Legacy Subaru Legacy 2003 21.1 MPG Highway Percentage 63 percent Subaru Legacy Subaru Legacy 2002 25.5 MPG Highway Percentage 30 percent Subaru Legacy Subaru Legacy 2002 17.0 MPG Highway Percentage 20 percent Subaru Legacy Subaru Legacy 2002 19.6 MPG Highway Percentage 20 percent Subaru Legacy Subaru Legacy 2001 47.8 MPG Highway Percentage 40 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 175-horsepower 2.5L H4
6-speed shiftable CVT AWD
flat light none 10 0 0 90 75 32.3  
2016 4dr Sedan 175-horsepower 2.5L H4
6-speed shiftable CVT AWD
hills light light 5 5 40 50 65 30.0  
2015 4dr Sedan 175-horsepower 2.5L H4
6-speed shiftable CVT AWD
flat light light 0 23 0 77 66 31.0  
2013 4dr Sedan 256-horsepower 3.6L H6
5-speed shiftable automatic AWD
hills light hvy 0 25 28 47 64 24.4  
2013 4dr Sedan 173-horsepower 2.5L H4
6-speed shiftable CVT AWD
flat med hvy 1 47 12 41 62 28.2  
2012 4dr Sedan 170-horsepower 2.5L H4
6-speed shiftable CVT AWD
hills med light 0 7 6 88 70 32.0  
2012 4dr Sedan 170-horsepower 2.5L H4
6-speed manual AWD
flat med none 0 15 50 35 63 25.0  
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2011 4dr Sedan turbocharged 265hp 2.5L H4
6-speed manual AWD
hills lead light 5 13 40 43 95 22.0  
2011 4dr Sedan 256-horsepower 3.6L H6
5-speed shiftable automatic AWD
flat med none 0 10 75 15 70 21.0  
2011 4dr Sedan 170-horsepower 2.5L H4
6-speed shiftable CVT AWD
flat light light 8 13 36 43 68 27.0  
2011 4dr Sedan 170-horsepower 2.5L H4
6-speed manual AWD
hills light none 0 90 0 10 65 25.0  
2010 4dr Sedan turbocharged 265hp 2.5L H4
6-speed manual AWD
flat med light 6 13 29 52 69 23.9  
2010 4dr Sedan 256-horsepower 3.6L H6
5-speed shiftable automatic AWD
flat med light 5 6 15 74 75 26.5  
2010 4dr Sedan 170-horsepower 2.5L H4
6-speed shiftable CVT AWD
flat light light 7 16 10 67 67 28.5  
2010 4dr Sedan 170-horsepower 2.5L H4
6-speed manual AWD
flat med none 5 60 20 15 100 21.4  
2009 4dr Wagon turbocharged 148hp 2.0L H4 Diesel
5-speed manual AWD
flat med none 0 5 10 85 120 39.4  
2009 4dr Sedan turbocharged 243hp 2.5L H4
6-speed manual AWD
hills med none 8 15 33 45 70 24.9  
2009 4dr Sedan turbocharged 243hp 2.5L H4
5-speed shiftable automatic AWD
flat med light 3 23 17 57 71 23.7  
2009 4dr Sedan 245-horsepower 3.0L H6
5-speed shiftable automatic AWD
hills med none 2 18 58 22 70 20.4  
2009 4dr Sedan 170-horsepower 2.5L H4
4-speed shiftable automatic AWD
flat light none 2 32 19 46 61 25.5  
2008.5 4dr Sedan turbocharged 243hp 2.5L H4
5-speed shiftable automatic AWD
flat med light 20 70 0 10 120 18.4  
2008 4dr Wagon 170-horsepower 2.5L H4
5-speed manual AWD
flat light none 0 50 20 30 100 20.4  
2008 4dr Sedan turbocharged 243hp 2.5L H4
6-speed manual AWD
flat med light 10 13 18 60 65 27.1  
2008 4dr Sedan turbocharged 243hp 2.5L H4
5-speed shiftable automatic AWD
flat light none 2 18 44 36 104 23.4  
2008 4dr Sedan turbocharged 243hp 2.5L H4
5-speed manual AWD
flat med none 5 7 31 57 72 23.4  
2008 4dr Sedan 245-horsepower 3.0L H6
5-speed shiftable automatic AWD
flat v.lt light 4 7 8 81 61 26.9  
2008 4dr Sedan 170-horsepower 2.5L H4
5-speed manual AWD
flat lead none 5 15 15 65 75 27.8  
2008 4dr Sedan 170-horsepower 2.5L H4
4-speed shiftable automatic AWD
flat med light 7 16 37 40 68 24.9  
2007 4dr Wagon turbocharged 243hp 2.5L H4
5-speed shiftable automatic AWD
hills med light 0 10 2 88 97 24.6  
2007 4dr Sedan turbocharged 243hp 2.5L H4
6-speed manual AWD
flat med none 16 16 5 62 75 21.3  
2007 4dr Sedan turbocharged 243hp 2.5L H4
5-speed manual AWD
hills med light 48 1 24 26 73 24.6  
2007 4dr Sedan 175-horsepower 2.5L H4
5-speed manual AWD
flat light light 20 20 20 40 65 26.4  
2007 4dr Sedan 175-horsepower 2.5L H4
4-speed shiftable automatic AWD
flat med light 2 8 4 85 72 29.5  
2006 4dr Wagon turbocharged 250hp 2.5L H4
5-speed shiftable automatic AWD
hills med none 8 10 20 63 73 21.1  
2006 4dr Wagon 175-horsepower 2.5L H4
5-speed manual AWD
flat light light 3 7 10 80 103 28.4  
2006 4dr Wagon 175-horsepower 2.5L H4
4-speed shiftable automatic AWD
flat med light 1 13 24 62 71 27.6  
2006 4dr Sedan turbocharged 250hp 2.5L H4
5-speed manual AWD
hills lead light 3 18 32 48 64 22.4  
2006 4dr Sedan 175-horsepower 2.5L H4
5-speed manual AWD
flat light light 3 3 3 90 87 29.9  
2006 4dr Sedan 175-horsepower 2.5L H4
4-speed shiftable automatic AWD
flat light hvy 0 10 20 70 50 33.0  
2005 4dr Wagon turbocharged 250hp 2.5L H4
5-speed shiftable automatic AWD
flat med none 23 18 14 44 70 21.8  
2005 4dr Wagon turbocharged 250hp 2.5L H4
5-speed manual AWD
flat med light 7 35 16 42 72 21.8  
2005 4dr Wagon 168-horsepower 2.5L H4
5-speed manual AWD
hills v.lt none 8 9 19 65 57 27.1  
2005 4dr Wagon 168-horsepower 2.5L H4
4-speed shiftable automatic AWD
hills med light 5 38 0 58 88 28.6  
2005 4dr Sedan turbocharged 250hp 2.5L H4
5-speed shiftable automatic AWD
flat lead light 17 25 15 43 79 20.3  
2005 4dr Sedan turbocharged 250hp 2.5L H4
5-speed manual AWD
flat med none 7 9 21 63 75 22.2  
2005 4dr Sedan 168-horsepower 2.5L H4
5-speed manual AWD
flat v.lt none 10 50 20 20 100 25.6  
2005 4dr Sedan 168-horsepower 2.5L H4
4-speed shiftable automatic AWD
flat med light 9 26 20 45 72 26.1  
2004 4dr Sedan 165-horsepower 2.5L H4
5-speed manual AWD
flat med light 0 15 30 55 60 29.0  
2003 4dr Wagon 165-horsepower 2.5L H4
5-speed manual AWD
flat med none 0 18 23 58 102 19.8  
2003 4dr Wagon 165-horsepower 2.5L H4
4-speed automatic AWD
flat lead light 0 30 63 7 60 20.6  
2003 4dr Sedan 165-horsepower 2.5L H4
5-speed manual AWD
flat med light 0 10 18 73 58 28.5  
2003 4dr Sedan 165-horsepower 2.5L H4
4-speed automatic AWD
flat med light 5 25 8 63 65 21.1  
2002 4dr Wagon 165-horsepower 2.5L H4
5-speed manual AWD
hills lead light 5 40 25 30 90 25.5  
2002 4dr Wagon 165-horsepower 2.5L H4
4-speed automatic AWD
hills light none 10 50 20 20 55 17.0  
2002 4dr Sedan 165-horsepower 2.5L H4
4-speed automatic AWD
flat med none 0 80 0 20 90 19.6  
2001 4dr Sedan 165-horsepower 2.5L H4
4-speed automatic AWD
flat v.lt hvy 0 0 60 40 70 47.8  

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This page shows only averages. See all the Subaru Legacy 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.

Subaru Legacy 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 Subaru Legacy 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 and Wagons.
See TrueDelta's information for all Subaru models and Mazda models.

What Our Members Are Saying about the Real Gas Mileage of the Subaru Legacy

Subaru Legacy Real Gas Mileage: Pros
YearBody/PowertrainComment
2013 4dr Sedan 256-horsepower 3.6L H6
5-speed shiftable automatic AWD
The downside of the H6 is not great gas mileage, but for what you are getting, it is not bad. On the highway with cruise control have managed to get about 30 mpg. In a mix of city and highway it gets 23 mpg. In city only it gets 18 mpg. Again, for AWD not bad, but not great. Want better gas mileage, get the H4 engine. see full Subaru Legacy review
2010 4dr Sedan 170-horsepower 2.5L H4
6-speed shiftable CVT AWD
With the CVT transmission, rpms stay low and there is no shifting saving on fuel. see full Subaru Legacy review
2010 4dr Sedan 170-horsepower 2.5L H4
6-speed shiftable CVT AWD
Great mileage for an AWD car see full Subaru Legacy review
2010 4dr Sedan 170-horsepower 2.5L H4
6-speed manual AWD
I average 43mpg in a little over half highway driving. I get 55mpg on the highway and about 35mpg in city driving. This is very impressive considering this car's performance. see full Subaru Legacy review
2006 4dr Wagon 175-horsepower 2.5L H4
4-speed shiftable automatic AWD
Better than expected especially for a heavy AWD wagon. see full Subaru Legacy review
2005 4dr Sedan 168-horsepower 2.5L H4
5-speed manual AWD
My driving styles provides better than stated fuel econcomy. see full Subaru Legacy review
2005 4dr Wagon 168-horsepower 2.5L H4
5-speed manual AWD
31 hwy, 22 city see full Subaru Legacy review
2005 4dr Sedan 168-horsepower 2.5L H4
4-speed shiftable automatic AWD
Good fuel management. 20-23 Mpg city / 25-29 highway. see full Subaru Legacy review
Subaru Legacy Real Gas Mileage: Cons
YearBody/PowertrainComment
2010 4dr Sedan 170-horsepower 2.5L H4
6-speed manual AWD
A bit thirstier than I had hoped - but the AWD probably has a lot to do with that. see full Subaru Legacy review
2009 4dr Sedan 170-horsepower 2.5L H4
4-speed shiftable automatic AWD
The fuel economy with a 4 cylinder 170 hp engine is pretty disappointing at 22-23 mpg. The AWD system is responsible for some of the loss but I also drive an AWD Acura TL SH-AWD with a 6 cylinder 305 hp engine that is only marginally worse at 18-19 mpg. see full Subaru Legacy review
2008 4dr Sedan 245-horsepower 3.0L H6
5-speed shiftable automatic AWD
I do not dislike the fuel econ, its AWD and I knew that going into the purchase, after you walk away from a totaled vehicle, safety becomes the prioroty over fuel econ. Have been able to get 32mpg out of both vehicles with smart driving see full Subaru Legacy review
2008 4dr Sedan turbocharged 243hp 2.5L H4
5-speed shiftable automatic AWD
heavier concumption due to awd and power see full Subaru Legacy review
2007 4dr Sedan turbocharged 243hp 2.5L H4
5-speed manual AWD
Room for improvement without driving below the speed limit. see full Subaru Legacy review
2006 4dr Sedan turbocharged 250hp 2.5L H4
5-speed manual AWD
With a 250 hp engine and AWD, I noticed fuel economy in the high teens to low 20s. see full Subaru Legacy review
2005 4dr Wagon turbocharged 250hp 2.5L H4
5-speed manual AWD
poor gas mileage for its size. getting about 18 mpg average in mixed driving. the car also requires 91+ octane. see full Subaru Legacy review
2005 4dr Sedan 168-horsepower 2.5L H4
4-speed shiftable automatic AWD
AWD system is a plus, overall, but fuel economy suffers. see full Subaru Legacy review
2005 4dr Sedan turbocharged 250hp 2.5L H4
5-speed manual AWD
In town gas mileage is about 20MPG. Highway can be as high as 28MPG but that is rare. see full Subaru Legacy review
2003 4dr Wagon 165-horsepower 2.5L H4
4-speed automatic AWD
Only get around 23mpg on average see full Subaru Legacy 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