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Lexus IS vs. Honda Insight Fuel Economy (L/100km)

Chart is based on 143 fuel economy reports for the Lexus IS and 262 fuel economy reports for the Honda Insight.

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.

Honda Insight L/100km

Honda Insight Honda Insight 2011 5.3 MPG Highway Percentage 32 percent Honda Insight Honda Insight 2011 4.5 MPG Highway Percentage 66 percent Honda Insight Honda Insight 2010 5.0 MPG Highway Percentage 71 percent Honda Insight Honda Insight 2010 5.2 MPG Highway Percentage 42 percent Honda Insight Honda Insight 2009.5 5.1 MPG Highway Percentage 20 percent Honda Insight Honda Insight 2006 3.9 MPG Highway Percentage 97 percent Honda Insight Honda Insight 2005 4.7 MPG Highway Percentage 60 percent Honda Insight Honda Insight 2001 4.0 MPG Highway Percentage 55 percent Honda Insight Honda Insight 2000 3.9 MPG Highway Percentage 43 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
2011 4dr Hatch 98-horsepower 1.3L I4 Hybrid
CVT FWD		 flat med light 12 31 26 32 79 5.3  
2011 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 mtns light none 1 10 23 66 58 4.5  
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
CVT FWD		 flat light none 3 10 16 71 66 5.0  
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 flat light light 7 27 24 42 66 5.2  
2009.5 4dr Hatch 98-horsepower 1.3L I4 Hybrid
CVT FWD		 flat light light 20 30 30 20 65 5.1  
2006 2dr Hatch 73-horsepower 1.0L I3 Hybrid
CVT FWD		 flat v.lt hvy 1 1 1 97 60 3.9  
2005 2dr Hatch 73-horsepower 1.0L I3 Hybrid
5-speed manual FWD		 flat med none 0 0 40 60 60 4.7  
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2001 2dr Hatch 73-horsepower 1.0L I3 Hybrid
5-speed manual FWD		 hills light light 0 20 25 55 63 4.0  
2000 2dr Hatch 73-horsepower 1.0L I3 Hybrid
5-speed manual FWD		 flat light light 13 15 30 43 80 3.9  

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This page shows only averages. See all the Honda Insight fuel economy data.

Lexus IS vs. Honda Insight 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 Honda Insight'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 Honda 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 Honda Insight

Honda Insight Real Gas Mileage: Pros
YearComment
2020 Honda's initial approach to hybrid powertrain technology wasn't a winner. A weak electric motor (13 horsepower in the case of the 2010 Insight) sandwiched between a gas engine and a CVT wasn't able to deliver nearly as much of a performance or fuel economy bump as the much stronger electric motors in Toyota's radically different hybrid system. Starting with the 2014 Accord Hybrid, Honda tried a new approach. The new system relied entirely on a much more powerful (166 horsepower) electric motor to drive the wheels up to 43 mph, and only then directly engaged the gas engine via a single-speed transmission. This was the sort of elegant "we keep it simple" solution Honda used to be known for, and it worked far better. EPA ratings of 50 mpg city and 45 mpg highway were best-in-class, topping the Toyota Camry Hybrid. This system received further tweaks when the Accord was redesigned for 2018, with mixed results for mpg (now 48/47). The Toyota Camry, also redesigned for 2018, now scores 51/53 or 44/47 depending on trim level. When I learned that a new Honda Insight would utilize a similar hybrid system with a 1.5-liter engine instead of the Accord's 2.0-liter in a smaller, lighter car, I had high hopes. Could a 60-mpg rating happen? Well, it didn't. The Honda Insight LX and EX score 55 mpg city and 49 mpg highway in the EPA's testing. The tested Touring trim, with larger tires and a higher curb weight, scores a little lower, 51/45. Pretty good. But a Toyota Prius (58/53 or 54/50, depending on the variant), a Toyota Corolla Hybrid (53/52), or a Hyundai Ioniq (57/59 or 55/54) scores better. In my testing, the trip computer reported averages ranging from 45 mpg to 75 mpg in suburban driving. (Whether the system opts to charge or draw energy from the battery pack has a big effect on the reported average during short drives.) In one 20-mile drive around hilly Ann Arbor the trip computer reported an impressive 64 mpg--and 93.6 mpg during the initial three miles. But in a Toyota Prius I averaged 65 mpg over the entire week despite some colder weather--it struggled to top 60 when the air temperature fell to 40--and observed trip averages over 90 a couple of times. Air temperatures were usually in the 60s during the week I had the Insight, optimal for fuel economy. The Honda Insight disappointed in highway driving. When cruising near 80 mph, a speed at which it can't take much advantage of its hybrid configuration, the Insight averaged 40 mpg. Good, but little better than a non-hybrid Civic. I observed a bit over 60 mpg on the highway in the Prius. Given these results, I struggled with listing fuel economy among the reasons to buy the new Insight. On the one hand, all of its direct competitors have higher EPA ratings. On the other, the Insight's mpg compares very well to non-hybrids, and fuel economy will be a primary reason people buy one. see full Honda Insight review
 

What Our Members Are Saying about the Real Gas Mileage of the Honda Insight

Honda Insight Real Gas Mileage: Pros
YearBody/PowertrainComment
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 Averaging 45mpg see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 40-45mpg. Slower you drive, better the milage see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 It gets better than advertised. 44 in town, 44 highway see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 Just about the same as the Prius. Look at Fuelly.com and see for yourself. see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 Fantastic! Driven frugally, I am getting 46mpg at 60/40 hwy/city driving. see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 getting 52mpg highway and about 46 city, maybe someone at toyota paid off the epa to rate this car low, because i have NEVER gotten under 45 mpg on the highway. see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 Econ Mode for just a three mile drive and got 53 mpg though traffic was very light. Afterwards during normal traffic driving, not using the Econ Mode, plus a very short drive 1/2 mile up and 1/2 mile back I got 36 mph engin cold. see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 Great gas mileage. see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 The highest available at time of purchase. see full Honda Insight review
2010 4dr Hatch 98-horsepower 1.3L I4 Hybrid
7-speed shiftable CVT FWD		 Getting near 50 MPG is fantastic after owning several cars that barely got 20 MPG. see full Honda Insight review