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Lexus IS vs. Mazda MX-5 Miata Fuel Economy (L/100km)

Chart is based on 143 fuel economy reports for the Lexus IS and 287 fuel economy reports for the Mazda MX-5 Miata.

Lexus IS L/100km

Lexus IS Lexus IS 2016 12.6 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2010 12.0 MPG Highway Percentage 2 percent Lexus IS Lexus IS 2010 10.8 MPG Highway Percentage 15 percent Lexus IS Lexus IS 2010 11.7 MPG Highway Percentage 44 percent Lexus IS Lexus IS 2009 9.3 MPG Highway Percentage 57 percent Lexus IS Lexus IS 2009 8.7 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2008 13.3 MPG Highway Percentage 28 percent Lexus IS Lexus IS 2008 9.5 MPG Highway Percentage 40 percent Lexus IS Lexus IS 2008 7.6 MPG Highway Percentage 55 percent Lexus IS Lexus IS 2008 10.7 MPG Highway Percentage 21 percent Lexus IS Lexus IS 2008 11.5 MPG Highway Percentage 20 percent Lexus IS Lexus IS 2007 9.6 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2007 7.4 MPG Highway Percentage 80 percent Lexus IS Lexus IS 2007 9.3 MPG Highway Percentage 45 percent Lexus IS Lexus IS 2006 11.0 MPG Highway Percentage 30 percent Lexus IS Lexus IS 2006 9.5 MPG Highway Percentage 47 percent Lexus IS Lexus IS 2006 9.8 MPG Highway Percentage 65 percent Lexus IS Lexus IS 2005.5 10.1 MPG Highway Percentage 60 percent Lexus IS Lexus IS 2005 15.0 MPG Highway Percentage 11 percent Lexus IS Lexus IS 2004 12.4 MPG Highway Percentage 50 percent Lexus IS Lexus IS 2004 11.2 MPG Highway Percentage 66 percent Lexus IS Lexus IS 2004 10.1 MPG Highway Percentage 48 percent Lexus IS Lexus IS 2003 12.1 MPG Highway Percentage 41 percent Lexus IS Lexus IS 2003 10.0 MPG Highway Percentage 70 percent Lexus IS Lexus IS 2002 10.9 MPG Highway Percentage 26 percent Lexus IS Lexus IS 2002 12.0 MPG Highway Percentage 35 percent Lexus IS Lexus IS 2002 11.0 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 L/100km
2016 4dr Sedan 306-horsepower 3.5L V6
8-speed shiftable automatic RWD
flat light light 50 10 20 20 70 12.6  
2010 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD
flat med light 0 0 98 2 80 12.0  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat med light 5 70 10 15 60 10.8  
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
hills med none 7 16 33 44 83 11.7  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat light none 2 9 33 57 90 9.3  
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
hills light light 5 5 20 70 65 8.7  
2008 4dr Sedan 416-horsepower 5.0L V8
8-speed shiftable automatic RWD
flat med hvy 20 25 27 28 70 13.3  
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2008 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
hills med none 16 20 25 40 66 9.5  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat v.lt light 15 15 15 55 70 7.6  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
flat light light 4 18 57 21 61 10.7  
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD
flat med light 8 63 10 20 110 11.5  
2007 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
flat med light 6 21 23 50 75 9.6  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat light hvy 5 5 10 80 70 7.4  
2007 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
flat light light 5 23 28 45 63 9.3  
2006 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
flat med light 7 50 13 30 71 11.0  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
flat med light 9 25 20 47 88 9.5  
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
hills light light 5 5 25 65 70 9.8  
2005.5 4dr Sedan 204-horsepower 2.5L V6
6-speed manual RWD
flat med none 20 20 0 60 80 10.1  
2005 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 41 49 0 11 59 15.0  
2004 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat lead hvy 20 15 15 50 75 12.4  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 1 27 6 66 77 11.2  
2004 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD
flat med light 7 29 16 48 71 10.1  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 9 33 18 41 88 12.1  
2003 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD
flat med none 0 0 30 70 75 10.0  
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 12 19 43 26 80 10.9  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
flat med light 10 40 15 35 68 12.0  
2002 4dr Sedan 215-horsepower 3.0L I6
5-speed manual RWD
flat med light 15 24 39 23 73 11.0  

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This page shows only averages. See all the Lexus IS fuel economy data.

Mazda MX-5 Miata L/100km

Mazda MX-5 Miata Mazda MX-5 Miata 2017 7.6 MPG Highway Percentage 50 percent Mazda MX-5 Miata Mazda MX-5 Miata 2016 6.8 MPG Highway Percentage 40 percent Mazda MX-5 Miata Mazda MX-5 Miata 2016 5.8 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2013 6.6 MPG Highway Percentage 44 percent Mazda MX-5 Miata Mazda MX-5 Miata 2012 8.2 MPG Highway Percentage 49 percent Mazda MX-5 Miata Mazda MX-5 Miata 2011 7.6 MPG Highway Percentage 60 percent Mazda MX-5 Miata Mazda MX-5 Miata 2010 8.4 MPG Highway Percentage 51 percent Mazda MX-5 Miata Mazda MX-5 Miata 2010 7.7 MPG Highway Percentage 85 percent Mazda MX-5 Miata Mazda MX-5 Miata 2009 8.9 MPG Highway Percentage 36 percent Mazda MX-5 Miata Mazda MX-5 Miata 2009 7.5 MPG Highway Percentage 73 percent Mazda MX-5 Miata Mazda MX-5 Miata 2008 8.6 MPG Highway Percentage 46 percent Mazda MX-5 Miata Mazda MX-5 Miata 2008 8.7 MPG Highway Percentage 80 percent Mazda MX-5 Miata Mazda MX-5 Miata 2008 7.7 MPG Highway Percentage 63 percent Mazda MX-5 Miata Mazda MX-5 Miata 2007 8.6 MPG Highway Percentage 51 percent Mazda MX-5 Miata Mazda MX-5 Miata 2007 9.0 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2007 7.8 MPG Highway Percentage 47 percent Mazda MX-5 Miata Mazda MX-5 Miata 2006 8.8 MPG Highway Percentage 51 percent Mazda MX-5 Miata Mazda MX-5 Miata 2006 8.7 MPG Highway Percentage 13 percent Mazda MX-5 Miata Mazda MX-5 Miata 2006 8.5 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2005 8.6 MPG Highway Percentage 35 percent Mazda MX-5 Miata Mazda MX-5 Miata 2005 7.6 MPG Highway Percentage 84 percent Mazda MX-5 Miata Mazda MX-5 Miata 2004 9.3 MPG Highway Percentage 45 percent Mazda MX-5 Miata Mazda MX-5 Miata 2004 8.7 MPG Highway Percentage 80 percent Mazda MX-5 Miata Mazda MX-5 Miata 2004 12.5 MPG Highway Percentage 80 percent Mazda MX-5 Miata Mazda MX-5 Miata 2003 7.4 MPG Highway Percentage 70 percent Mazda MX-5 Miata Mazda MX-5 Miata 2003 8.5 MPG Highway Percentage 42 percent Mazda MX-5 Miata Mazda MX-5 Miata 2002 12.7 MPG Highway Percentage 43 percent Mazda MX-5 Miata Mazda MX-5 Miata 2002 8.3 MPG Highway Percentage 60 percent Mazda MX-5 Miata Mazda MX-5 Miata 2002 10.9 MPG Highway Percentage 20 percent Mazda MX-5 Miata Mazda MX-5 Miata 2001 8.4 MPG Highway Percentage 25 percent Mazda MX-5 Miata Mazda MX-5 Miata 2001 9.2 MPG Highway Percentage 20 percent Mazda MX-5 Miata Mazda MX-5 Miata 2001 7.5 MPG Highway Percentage 71 percent Mazda MX-5 Miata Mazda MX-5 Miata 2000 8.7 MPG Highway Percentage 70 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 L/100km
2017 2dr Convertible 155-horsepower 2.0L I4
6-speed manual RWD
flat med light 25 25 0 50 70 7.6  
2016 2dr Convertible 155-horsepower 2.0L I4
6-speed manual RWD
hills lead none 15 30 15 40 80 6.8  
2016 2dr Convertible 129-horsepower 1.5L I4
6-speed manual RWD
flat v.lt none 5 5 20 70 65 5.8  
2013 2dr Convertible 167-horsepower 2.0L I4
5-speed manual RWD
hills med light 5 5 46 44 60 6.6  
2012 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
flat med light 1 10 39 49 70 8.2  
2011 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
flat med hvy 0 40 0 60 70 7.6  
2010 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
flat med light 15 16 19 51 68 8.4  
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2010 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
hills med none 2 2 13 85 63 7.7  
2009 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
flat med light 11 20 34 36 70 8.9  
2009 2dr Convertible 167-horsepower 2.0L I4
5-speed manual RWD
flat lead none 0 8 20 73 73 7.5  
2008 2dr Convertible 166-horsepower 2.0L I4
6-speed manual RWD
flat med light 5 15 34 46 67 8.6  
2008 2dr Convertible 166-horsepower 2.0L I4
5-speed manual RWD
flat lead none 0 10 10 80 63 8.7  
2008 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
hills med light 17 8 13 63 75 7.7  
2007 2dr Convertible 166-horsepower 2.0L I4
6-speed manual RWD
flat med none 15 28 5 51 80 8.6  
2007 2dr Convertible 166-horsepower 2.0L I4
5-speed manual RWD
hills v.lt light 0 15 15 70 50 9.0  
2007 2dr Convertible 163-horsepower 2.0L I4
6-speed shiftable automatic RWD
flat med hvy 2 14 37 47 67 7.8  
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
flat med light 1 3 45 51 96 8.8  
2006 2dr Convertible 170-horsepower 2.0L I4
5-speed manual RWD
flat lead light 7 67 13 13 93 8.7  
2006 2dr Convertible 166-horsepower 2.0L I4
6-speed shiftable automatic RWD
flat light none 0 0 30 70 70 8.5  
2005 2dr Convertible turbocharged 178hp 1.8L I4
6-speed manual RWD
hills med none 13 23 29 35 67 8.6  
2005 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 0 0 16 84 76 7.6  
2004 2dr Convertible turbocharged 178hp 1.8L I4
6-speed manual RWD
flat med light 4 26 24 45 65 9.3  
2004 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
flat lead none 0 0 20 80 60 8.7  
2004 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 3 10 7 80 110 12.5  
2003 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
hills med none 3 10 18 70 83 7.4  
2003 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 7 26 25 42 70 8.5  
2002 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
flat med light 8 20 30 43 74 12.7  
2002 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med none 23 13 5 60 68 8.3  
2002 2dr Convertible 142-horsepower 1.8L I4
4-speed automatic RWD
flat light light 10 20 50 20 60 10.9  
2001 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
hills lead light 3 60 13 25 55 8.4  
2001 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
flat med light 14 22 45 20 68 9.2  
2001 2dr Convertible 142-horsepower 1.8L I4
4-speed automatic RWD
hills med none 0 0 29 71 58 7.5  
2000 2dr Convertible 140-horsepower 1.8L I4
5-speed manual RWD
flat med none 0 20 10 70 80 8.7  

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This page shows only averages. See all the Mazda MX-5 Miata fuel economy data.

Lexus IS vs. Mazda MX-5 Miata Fuel Economy (L/100km)

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 Lexus IS and Mazda MX-5 Miata's where a car was driven. So you can get an idea of their real-world L/100km based on how and where you drive a car.

See TrueDelta's information for all Sedans and Convertibles.
See TrueDelta's information for all Lexus models and Mazda models.

TrueDelta Reviews the Real Gas Mileage of the Lexus IS

Lexus IS Real Gas Mileage: Cons
YearComment
The 2014 IS 350 manages 19 mpg in the EPA city test, and 28 in the highway test. While these figures tie those for the Cadillac ATS 3.6, they're short of the 23/33 achieved by the BMW 335i. Also, with both the BMW and the Cadillac you can step down to more efficient turbocharged four-cylinder engines. With the new IS, your only other engine option is a small V6, and its fuel economy is only a couple mpg better than that of the big V6 (21/30). The BMW has a further advantage: you can set the steering and suspension to "Sport" without forcing the transmission to hold a lower gear. In the 2014 IS 350 F Sport, the sport modes are "all or nothing." Select one to firm up the steering and suspension, and the transmission won't shift beyond sixth gear, reducing fuel economy. Lexus should follow Audi's lead and offer an "Individual" mode, where each system (powertrain, steering, suspension, etc.) can be set separately. see full Lexus IS review
 

What Our Members Are Saying about the Real Gas Mileage of the Lexus IS

Lexus IS Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
Almost as good as Prius, this is the hybrid 250h see full Lexus IS review
2010 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
Our 2010 IS 250 has given us 30 mph highway mileage. I consider it very very good. see full Lexus IS review
2009 4dr Sedan 306-horsepower 3.5L V6
6-speed shiftable automatic RWD
Excellent fuel economy... overall 24 mpg city and highway combined. As high as 32 mpg highway driving in Arizona mountains. see full Lexus IS review
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
Good highway fuel economy, can average 30+ mpg see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
My real world economy has been 33 mpg hwy (not the computer figure, an optimistic 34.5-35)which is better than expected and slightly over 20 in city driving (not heavy traffic), also better than expected see full Lexus IS review
2008 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic AWD
Good fuel economy for a 1600kg car with AWD. see full Lexus IS review
2006 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
At around 200hp, it isnt the fastest luxury sedan. However, on my roadtrip across the eastern / mid eastern USA I was able to get ~33 ish mpg (computer reported) on flat terrain and premium fuel. City mpg is what I expect,22-25ish. But I think it is great as a long distance comfortable vehicle. see full Lexus IS review
Lexus IS Real Gas Mileage: Cons
YearBody/PowertrainComment
2009 4dr Sedan 204-horsepower 2.5L V6
6-speed shiftable automatic RWD
Wish it got better fuel economy for such a small car and engine... Sticker is 21/29, I'm averaging 27MPG (computer read); avg on hwy is about 33-34 mpg while city is about 19-23mpg. Engine variety would help, a 4 cyl + turbo or something, but toyota/lexus isn't exactly known for that. see full Lexus IS review
2002 4dr Wagon 215-horsepower 3.0L I6
5-speed shiftable automatic RWD
For a small, relatively modestly powered car, it gets poor economy. Corvettes and most Porsches get better economy. see full Lexus IS review
 

TrueDelta Reviews the Real Gas Mileage of the Mazda MX-5 Miata

Mazda MX-5 Miata Real Gas Mileage: Pros
YearComment
2016 Nothing has improved more with the Mazda MX-5 Miata's latest redesign than its fuel economy. The 2015 managed only 21 mpg city and 28 mpg highway in the EPA's tests, disappointing for such a light car powered by a naturally aspirated 2.0-liter engine. The new car tests much better: 27/34 with a manual transmission and 27/36 with an automatic. The MINI Cooper S Roadster was about equally efficient when equipped with a manual transmission (26/35), a little short with an automatic (25/34). The new MINI Convertible, if it shares the Hardtop's EPA ratings, won't be as efficient with a manual transmission (23/33) but will be as competitive as its predecessor with an automatic (26/33). The Scion FR-S barely out-economizes the old Miata with a manual (22/30) but is just a couple mpg short of the new one with an automatic (25/34). Premium fuel is recommended in all of these cars. The new Miata can use regular unleaded at the cost of some responsiveness. In my real-world driving of the new Miata with an automatic transmission the trip computer reported a suburban average around 30 mpg. On a 60-mph highway the average can reach 40, about 4 mpg better than a Scion FR-S and 5 mpg better than a MINI JCW Clubman, both tested with manual transmissions. Drive at 75 mph with the top down, though, and the reported average will fall to 34 mpg. The largest fuel economy advantage over the Scion FR-S appeared when both were flogged along Ohio's Route 26. The Scion's fuel economy dipped into the high teens, but the Mazda's only into the mid-20s. The most likely reason: the torquier, far less peaky Mazda engine doesn't have to be revved nearly as high to reach its sweet spot. The JCW Clubman, its turbo reducing the need for fuel-guzzling runs to the red line, fell between the two with a "spirited driving" average around 20 mpg. Overall, with the redesign the Miata's fuel economy has gone from worst to first. see full Mazda MX-5 Miata review
Mazda MX-5 Miata Real Gas Mileage: Cons
YearComment
The first four "why nots" shouldn't have come as a surprise to anyone. This one might. I didn't ding the MX-5 Miata's engine for its power output, but I am going to ding it for its fuel input. While EPA ratings of 21 mpg city and 28 mpg are hardly abysmal, the FR-S does better (22/30) and a 315-horsepower Porsche Boxster S does about as well (20/28). With one of Mazda's new SKYACTIV engines, the Miata would go much farther on a gallon of gas. (The 2,900-pound Mazda3 is rated 27/39.) But this engine won't happen until the Miata is again redesigned. see full Mazda MX-5 Miata review
 

What Our Members Are Saying about the Real Gas Mileage of the Mazda MX-5 Miata

Mazda MX-5 Miata Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 2dr Convertible 167-horsepower 2.0L I4
6-speed manual RWD
Good enough to drive for fun and not worry about the cost. see full Mazda MX-5 Miata review
2008 2dr Convertible 158-horsepower 2.0L I4
6-speed shiftable automatic RWD
I average 28mpg city and about 32 highway, and I have an uncontrollable lead foot in this car. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
The MX-5 always seemed to be great on gas, no matter how hard you flogged it, top up or top down. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
I average about 8.5 L/100 km, so even though it uses Premium fue, it only costs about $40 to drive as much as 475km. This is with gas at about $1.20 a litre. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
a very cheap car to run see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
To date gas millage has never gone under 30mph and has gone to almost 39mph. And this has not been driving it EASY. Like I said before, it is a FUN FUN FUN Car. see full Mazda MX-5 Miata review
2006 2dr Convertible 170-horsepower 2.0L I4
6-speed manual RWD
Great fuel economy for a sporty car. see full Mazda MX-5 Miata review
2005 2dr Convertible turbocharged 178hp 1.8L I4
6-speed manual RWD
Excellent mileage. I get 36mpg on normal highway cruises and about 28mpg in town. When I go to the race track, I run around 22-24 mpg. If you are really savvy, this car burns about 2 gallons an hour! So cheap to keep on the road. see full Mazda MX-5 Miata review
2003 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
Never thirstier than 10.5 l/100 km, even during autocross. see full Mazda MX-5 Miata review
2003 2dr Convertible 142-horsepower 1.8L I4
5-speed manual RWD
30-35 MPG....easy question these days. see full Mazda MX-5 Miata review
Mazda MX-5 Miata Real Gas Mileage: Cons
YearBody/PowertrainComment
2003 2dr Convertible 142-horsepower 1.8L I4
6-speed manual RWD
For a small (size of a subcompact) 4-cylinder stick shift, it only gets around 28 mpg highway...my 6-cylinder Honda Accord got 30+. see full Mazda MX-5 Miata review