Mazda RX-8 vs. Audi A5 / S5 / RS5 MPG

Chart is based on 202 fuel economy reports for the Mazda RX-8 and 141 fuel economy reports for the Audi A5 / S5 / RS5.

Mazda RX-8 MPG

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
Looking for a warranty? Get a quote.
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

Return to top

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

Audi A5 / S5 / RS5 MPG

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
2013	2dr Coupe turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD	flat	med	light	0	0	34	66	75	27.4
2012	2dr Coupe turbocharged 211hp 2.0L I4 6-speed manual AWD	flat	med	light	5	16	50	29	66	24.4
2011	2dr Coupe 354-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	med	light	10	30	30	30	75	15.6
2011	2dr Coupe 354-horsepower 4.2L V8 6-speed manual AWD	hills	light	light	3	8	20	70	73	19.4
2011	2dr Convertible turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD	flat	light	none	20	10	20	50	70	25.5
2010	2dr Coupe turbocharged 211hp 2.0L I4 6-speed manual AWD	flat	lead	none	9	11	47	33	72	25.2
2010	2dr Coupe 354-horsepower 4.2L V8 6-speed shiftable automatic AWD	flat	med	hvy	10	10	10	70	120	21.4
Looking for a warranty? Get a quote.
2010	2dr Convertible supercharged 333hp 3.0L V6 7-speed automated manual AWD	hills	med	none	0	5	40	55	88	23.1
2009	2dr Coupe 354-horsepower 4.2L V8 6-speed manual AWD	flat	med	none	0	17	22	62	67	20.3
2009	2dr Coupe 265-horsepower 3.2L V6 6-speed manual AWD	flat	med	light	10	28	40	23	68	26.5
2008	2dr Coupe turbocharged 240hp 3.0L V6 Diesel 6-speed manual AWD	flat	light	light	0	0	0	100	100	47.0
2008	2dr Coupe turbocharged 170hp 1.8L I4 6-speed manual FWD	flat	med	light	13	18	28	43	160	26.6
2008	2dr Coupe 354-horsepower 4.2L V8 6-speed manual AWD	flat	lead	none	1	14	60	24	73	15.9
2008	2dr Coupe 265-horsepower 3.2L V6 6-speed shiftable automatic AWD	flat	med	hvy	20	24	24	32	80	24.5

Return to top

This page shows only averages. See all the Audi A5 / S5 / RS5 fuel economy data.

See TrueDelta's information for all Coupes

See TrueDelta's information for all Mazda models and Audi models.

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

Mazda RX-8 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
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 Audi A5 / S5 / RS5

Audi A5 / S5 / RS5 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	2dr Coupe turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD	Mileage seems to have leveled out at about 27 mpg with a 60/40 mix of highway and suburban driving. On longer trips, it has been as high as 30 mpg while driving a steady 75 mph. see full Audi A5 / S5 / RS5 review
2010	2dr Coupe turbocharged 211hp 2.0L I4 6-speed manual AWD	Averaging 9L/100KM, without feeling too conservative. see full Audi A5 / S5 / RS5 review

Audi A5 / S5 / RS5 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2011	2dr Coupe 354-horsepower 4.2L V8 6-speed manual AWD	I knew what gas mileage the S5 got long before I stepped onto the dealer lot. Still, I get 24 mpg on a full highway run. see full Audi A5 / S5 / RS5 review
2009	2dr Coupe turbocharged 170hp 2.0L I4 Diesel 6-speed manual AWD	Fuel economy is fair when going for a long ride, the car is AWD and heavy. I did however expect a somewhat lower fuel consumption when driving short-distance. see full Audi A5 / S5 / RS5 review
2008	2dr Coupe 354-horsepower 4.2L V8 6-speed manual AWD	It is not great, and if you have fun with the car, you will get less than 15MPG see full Audi A5 / S5 / RS5 review
2008	2dr Coupe 354-horsepower 4.2L V8 6-speed manual AWD	drinks too fast when driving is more aggressive see full Audi A5 / S5 / RS5 review
2008	2dr Coupe 354-horsepower 4.2L V8 6-speed manual AWD	Thirsty V8 coupled with a car that was born to be driven hard equals mid-teen MPG in mostly non-highway driving. see full Audi A5 / S5 / RS5 review