Chevrolet Tahoe / Suburban vs. Lexus IS Fuel Economy (km/L)

Chart is based on 105 fuel economy reports for the Chevrolet Tahoe / Suburban and 143 fuel economy reports for the Lexus IS.

Chevrolet Tahoe / Suburban km/L

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	km/L
2012	4dr SUV, ext. 320-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	none	0	10	40	50	65	35.3
2011	4dr SUV 320-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	med	light	10	50	10	30	80	37.6
2011	4dr SUV 320-horsepower 5.3L V8 6-speed shiftable automatic 4WD	hills	med	light	15	23	28	36	71	43.3
2010	4dr SUV, ext. 320-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	med	none	17	33	21	30	71	35.9
2009	4dr SUV, ext. 310-horsepower 5.3L V8 6-speed shiftable automatic RWD	flat	med	light	10	40	0	50	70	41.9
2009	4dr SUV, ext. 310-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	med	light	10	10	40	40	75	41.9
2008	4dr SUV 332-horsepower 6.0L V8 Hybrid 4-speed 2-mode automatic 4WD w/low range	flat	light	light	0	85	0	15	75	36.5
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2008	4dr SUV 320-horsepower 5.3L V8 4-speed automatic RWD	flat	med	light	45	10	5	40	80	42.3
2008	4dr SUV 320-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	hvy	3	38	10	49	77	32.1
2007	4dr SUV, ext. 320-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	7	38	36	20	85	22.9
2007	4dr SUV 320-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	19	31	11	40	65	40.1
2007	4dr SUV 320-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	med	light	8	26	18	47	69	37.5
2006	4dr SUV 335-horsepower 6.0L V8 4-speed automatic AWD	flat	light	none	5	10	10	75	65	35.8
2006	4dr SUV 295-horsepower 5.3L V8 4-speed automatic RWD	flat	med	light	20	43	0	38	73	35.1
2006	4dr SUV 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	light	0	10	40	50	70	40.7
2005	4dr SUV, ext. 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	0	0	80	20	65	36.0
2005	4dr SUV 295-horsepower 5.3L V8 4-speed automatic RWD	flat	med	hvy	5	15	60	20	60	40.7
2005	4dr SUV 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	light	4	16	39	41	74	32.6
2004	4dr SUV, ext. 295-horsepower 5.3L V8 4-speed automatic RWD	flat	med	hvy	0	40	40	20	65	32.0
2004	4dr SUV, ext. 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	3	3	65	30	73	32.2
2004	4dr SUV, ext. 180-horsepower 4.3L V6 4-speed automatic 4WD w/low range	mtns	lead	hvy	5	15	15	65	75	24.7
2004	4dr SUV 295-horsepower 5.3L V8 4-speed automatic RWD	flat	light	hvy	10	17	34	40	64	37.5
2004	4dr SUV 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	med	hvy	10	20	28	43	70	34.6
2003	4dr SUV, ext. 285-horsepower 5.3L V8 4-speed automatic RWD	flat	med	light	0	0	50	50	60	34.2
2003	4dr SUV, ext. 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	med	light	6	29	9	56	69	31.6
2003	4dr SUV 285-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	10	70	10	10	65	28.2
2003	4dr SUV 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	med	none	9	24	31	36	65	37.2
2002	4dr SUV, ext. 285-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	4	43	9	43	60	57.6
2002	4dr SUV, ext. 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	med	hvy	5	20	28	48	60	37.1
2002	4dr SUV 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	none	2	20	74	3	75	35.2
2000	4dr SUV, ext. 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	hvy	0	0	0	100	70	37.2
2000	4dr SUV 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	0	0	85	15	60	30.7

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Lexus IS km/L

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	km/L
2016	4dr Sedan 306-horsepower 3.5L V6 8-speed shiftable automatic RWD	flat	light	light	50	10	20	20	70	44.0
2010	4dr Sedan 416-horsepower 5.0L V8 8-speed shiftable automatic RWD	flat	med	light	0	0	98	2	80	47.8
2010	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD	flat	med	light	5	70	10	15	60	51.3
2010	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD	hills	med	none	7	16	33	44	83	29.3
2009	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD	flat	light	none	2	9	33	57	90	42.0
2009	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD	hills	light	light	5	5	20	70	65	63.5
2008	4dr Sedan 416-horsepower 5.0L V8 8-speed shiftable automatic RWD	flat	med	hvy	20	25	27	28	70	41.5
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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	58.5
2008	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD	flat	v.lt	light	15	15	15	55	70	72.9
2008	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD	flat	light	light	4	18	57	21	61	52.7
2008	4dr Sedan 204-horsepower 2.5L V6 6-speed manual RWD	flat	med	light	8	63	10	20	110	8.7
2007	4dr Sedan 306-horsepower 3.5L V6 6-speed shiftable automatic RWD	flat	med	light	6	21	23	50	75	57.9
2007	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD	flat	light	hvy	5	5	10	80	70	74.8
2007	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD	flat	light	light	5	23	28	45	63	59.6
2006	4dr Sedan 306-horsepower 3.5L V6 6-speed shiftable automatic RWD	flat	med	light	7	50	13	30	71	51.9
2006	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic RWD	flat	med	light	9	25	20	47	88	35.6
2006	4dr Sedan 204-horsepower 2.5L V6 6-speed shiftable automatic AWD	hills	light	light	5	5	25	65	70	56.5
2005.5	4dr Sedan 204-horsepower 2.5L V6 6-speed manual RWD	flat	med	none	20	20	0	60	80	79.1
2005	4dr Sedan 215-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	med	light	41	49	0	11	59	37.3
2004	4dr Wagon 215-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	lead	hvy	20	15	15	50	75	44.7
2004	4dr Sedan 215-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	med	light	1	27	6	66	77	49.7
2004	4dr Sedan 215-horsepower 3.0L I6 5-speed manual RWD	flat	med	light	7	29	16	48	71	56.5
2003	4dr Sedan 215-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	med	light	9	33	18	41	88	37.2
2003	4dr Sedan 215-horsepower 3.0L I6 5-speed manual RWD	flat	med	none	0	0	30	70	75	55.1
2002	4dr Wagon 215-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	med	light	12	19	43	26	80	46.6
2002	4dr Sedan 215-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	med	light	10	40	15	35	68	46.2
2002	4dr Sedan 215-horsepower 3.0L I6 5-speed manual RWD	flat	med	light	15	24	39	23	73	40.3

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TrueDelta Reviews the Real Gas Mileage of the Chevrolet Tahoe / Suburban

Chevrolet Tahoe / Suburban Real Gas Mileage: Pros
Year	Comment
2015	You didn't expect to see fuel economy among the reasons to buy a Tahoe, did you? Of course, fuel economy remains well below that for most smaller, lighter vehicles. But General Motors has substantially improved the SUV's efficiency by adding variable valve timing, direct injection (fuel is injected under high pressure directly into the cylinder, rather than into the manifold), and cylinder deactivation to the 5.3-liter V8. EPA ratings improved from 15 city, 21 highway to 16/23 with 2WD and 16/22 with 4WD. I observed averages as high as 21 in the suburbs and 26 on the highway, quite impressive for an 80-inch-wide, 74-inch-tall, three-ton vehicle. Transitions between V4 and V8 operation are not perceptible, with the engine usually in the former mode when not accelerating, even at highway speeds. Ford took a different approach to improving fuel economy, replacing its 5.4-liter V8 with a turbocharged 3.5-liter V6. The resulting EPA ratings of 15 mpg city and 20 mpg highway are better than before, but aren't as good as the Tahoe's. My trip computer averages were similarly two to three mpg shy of those observed in the Tahoe. see full Chevrolet Tahoe / Suburban review

What Our Members Are Saying about the Real Gas Mileage of the Chevrolet Tahoe / Suburban

Chevrolet Tahoe / Suburban Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2010	4dr SUV, ext. 320-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	For a Big SUV, 20mpg is all I could ask for right now. see full Chevrolet Tahoe / Suburban review

Chevrolet Tahoe / Suburban Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2010	4dr SUV, ext. 320-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	I don't really have any complaints about this vehicle for our uses. But many people do buy them and don't use them for their intended purposes, and then complain about paying for gas. Well, it is a truck, after all. see full Chevrolet Tahoe / Suburban review
2010	4dr SUV, ext. 320-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	Even though its fuel economy is great for its size, it still uses a lot of gas see full Chevrolet Tahoe / Suburban review
2007	4dr SUV, ext. 320-horsepower 5.3L V8 4-speed automatic 4WD w/low range	In mostly local suburban areas we average 12 MPG. Highway only can reach 18 or 19 depending on load and hills. see full Chevrolet Tahoe / Suburban review
2007	4dr SUV 320-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Fuel economy is not great, but it's not horrible either. Again, this is a full size SUV on a truck platform. How much can anyone truly complain when you know this going in? see full Chevrolet Tahoe / Suburban review
2007	4dr SUV 320-horsepower 5.3L V8 4-speed automatic 4WD w/low range	not economical see full Chevrolet Tahoe / Suburban review
2007	4dr SUV 320-horsepower 5.3L V8 4-speed automatic 4WD w/low range	17.2 to 17.4 on combined city and highway (more highway) see full Chevrolet Tahoe / Suburban review
2006	4dr SUV 295-horsepower 5.3L V8 4-speed automatic RWD	V8 sucks gas like a ... V8; 18 MPG in all around driving see full Chevrolet Tahoe / Suburban review
2005	4dr SUV 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Poor gas mileage... but I knew this before purchasing it so this is not a problem for me. If gas prices scare you... then this is not the vehicle for you. see full Chevrolet Tahoe / Suburban review
2005	4dr SUV, ext. 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	At $4 a gallon and a 32 gallon gas tank, you feel it every time you fill up and if you drive a lot in the city, at 15 mpg, you will fill up often. The vehicle actually garners a respectable 21 mpg on the highway. see full Chevrolet Tahoe / Suburban review
2003	4dr SUV 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	The obvious. 16 MPG highway. Enough said. see full Chevrolet Tahoe / Suburban review

TrueDelta Reviews the Real Gas Mileage of the Lexus IS

Lexus IS Real Gas Mileage: Cons
Year	Comment
	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
Year	Body/Powertrain	Comment
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
Year	Body/Powertrain	Comment
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