Mazda RX-8 vs. Acura MDX MPG

Chart is based on 202 fuel economy reports for the Mazda RX-8 and 251 fuel economy reports for the Acura MDX.

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
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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.

Acura MDX 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
2014	4dr SUV 290-horsepower 3.5L V6 6-speed shiftable automatic FWD	flat	light	none	0	20	40	40	70	18.8
2014	4dr SUV 290-horsepower 3.5L V6 6-speed shiftable automatic AWD	flat	med	light	0	10	35	55	65	20.0
2011	4dr SUV 300-horsepower 3.7L V6 6-speed shiftable automatic AWD	flat	light	none	8	10	31	50	62	16.5
2010	4dr SUV 300-horsepower 3.7L V6 6-speed shiftable automatic AWD	flat	light	none	12	0	58	30	67	15.4
2009	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	flat	light	light	6	15	21	59	94	18.7
2008	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	flat	light	light	10	15	24	51	71	19.6
2007	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	flat	med	none	3	13	32	52	73	18.6
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2006	4dr SUV 253-horsepower 3.5L V6 5-speed automatic AWD	flat	light	light	5	27	26	42	67	19.7
2005	4dr SUV 265-horsepower 3.5L V6 5-speed automatic AWD	flat	light	light	10	27	14	49	68	18.9
2004	4dr SUV 265-horsepower 3.5L V6 5-speed automatic AWD	flat	light	light	6	19	27	48	67	19.3
2003	4dr SUV 260-horsepower 3.5L V6 5-speed automatic AWD	flat	med	none	7	32	22	39	68	17.5
2002	4dr SUV 240-horsepower 3.5L V6 5-speed automatic AWD	flat	light	light	9	30	25	37	88	18.8
2001	4dr SUV 240-horsepower 3.5L V6 5-speed automatic AWD	flat	med	light	0	29	41	31	69	16.6

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This page shows only averages. See all the Acura MDX fuel economy data.

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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

TrueDelta Reviews the Real Gas Mileage of the Acura MDX

Acura MDX Real Gas Mileage: Pros
Year	Comment
2014	In addition to trimming the size and weight of the MDX, Acura also reduced the size of the V6 engine from 3.7 to 3.5 liters. Thanks to direct injection the new, smaller engine is nearly as powerful (290 vs. 300 horsepower), and is even a little punchier at low rpm. It can run on three cylinders to save fuel while cruising. The QX60's V6, also 3.5 liters, lacks direct injection and is only good for 265 horsepower. Even though the Infiniti's CVT (continuously variable transmission) can hold the engine at its power peak, this isn't enough to compensate for its power and weight disadvantages. The MDX is noticeably quicker, if still not thrillingly quick. (It can get to 60 mph in about seven seconds.) Then again, fuel economy appears to have been the priority. In the EPA's tests, the 2013 MDX rated 16 mpg city, 21 mpg highway. Infiniti, aiming to top these marks with the JX35 did so by two mpg (18/23). A redesigned CVT shared with the new Nissan Pathfinder bumps the QX60 to 19/25. The new MDX trails the Infiniti by one mpg in the city, but tops it on the highway with a 27 mpg rating--tying the new diesel BMW X5 and impressive for a gas-powered three-row crossover. In real-world suburban driving with an economy-minded right foot the trip computer reported averages from 21 to 23. With a feather-light foot and good luck with traffic lights, 25 can happen. Drive the MDX hard enough to enjoy the snarl that kicks in with the big VTEC cam lobes at 5,000 rpm, on the other hand, and mpg falls into the mid-teens. Highway driving confirmed the EPA estimate. see full Acura MDX review

What Our Members Are Saying about the Real Gas Mileage of the Acura MDX

Acura MDX Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2014	4dr SUV 290-horsepower 3.5L V6 6-speed shiftable automatic FWD	Bought this car because the fuel economy was the same as the Hybrid SUV I was looking to replace. Best miliage is on the highway with AC off at 27 MPG. It gets 23-24 in the city with AC off. see full Acura MDX review
2008	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	can be better see full Acura MDX review
2006	4dr SUV 253-horsepower 3.5L V6 5-speed automatic AWD	One of the best for an SUV. 24 highway at 70 mph, 20 in town. see full Acura MDX review
2002	4dr SUV 240-horsepower 3.5L V6 5-speed automatic AWD	I have averaged 25 mpg on the road, occasionally reaching 26-7. Ethanol is bad for it (as it is on all older cars). see full Acura MDX review
2002	4dr SUV 240-horsepower 3.5L V6 5-speed automatic AWD	Best economy in its class. For a 7 passenger vehicle, great hwy mileage. I averaged 22-25mpg strict hwy. 15-18mpg in town. see full Acura MDX review
2002	4dr SUV 240-horsepower 3.5L V6 5-speed automatic AWD	Unbeatable for a 4WD vehicle of its capacity. see full Acura MDX review

Acura MDX Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2012	4dr SUV 300-horsepower 3.7L V6 6-speed shiftable automatic AWD	Gas mileage is not good. The best I get is around 20 mpg, and use 91 octane as reccommended. I've tried mid-grade 89 octane with no noticable difference but for $1.00-$2.00 per tankful, I'm choosing to stick with what is reccommended. It would be nice to have a front wheel drive only version which would save on gas, but it's not offered. see full Acura MDX review
2008	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	Well, it's AWD, and it's a heavy SUV. As a result, fuel economy is not great. see full Acura MDX review
2008	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	I have yet to see 15 city/20 hwy, even with 12k on the odometer and not driving it hard. 13/18 is more like it. see full Acura MDX review
2008	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	Gas engine does not achieve excellent mileage diesels provide see full Acura MDX review
2008	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	Gets only 17-18 mpg. see full Acura MDX review
2007	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	City driving is worse than advertised...15 to 16 mpg. But highway is 23-24 mpg. see full Acura MDX review
2007	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	I get only 16mpg even on highways see full Acura MDX review
2007	4dr SUV 300-horsepower 3.7L V6 5-speed shiftable automatic AWD	19Mpg is ok. Its not great. see full Acura MDX review
2006	4dr SUV 253-horsepower 3.5L V6 5-speed automatic AWD	wish the fuel economy could have been addressed a bit more...not really complaining cos I drive an Odyssey too ..which has the same engine as the MDX..similar consumption... see full Acura MDX review
2005	4dr SUV 265-horsepower 3.5L V6 5-speed automatic AWD	Would get a hybrid next - more MPG. see full Acura MDX review