GMC Sierra 1500 vs. Toyota Avalon MPG

Chart is based on 526 fuel economy reports for the GMC Sierra 1500 and 54 fuel economy reports for the Toyota Avalon.

GMC Sierra 1500 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
2021	4dr Crew Cab 6ft bed turbocharged 277hp 3.0L V6 Diesel 10-speed shiftable automatic 4WD w/low range	flat	light	light	0	25	25	50	70	24.5
2018	4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8 8-speed shiftable automatic 4WD w/low range	flat	light	light	0	5	15	80	70	22.0
2015	4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8 8-speed shiftable automatic 4WD w/low range	flat	med	light	0	5	0	95	65	20.9
2015	2dr Regular Cab 6.5ft bed 355-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	med	none	8	38	0	55	118	18.7
2014	4dr Crew Cab 5.5ft bed 420-horsepower 6.2L V8 6-speed shiftable automatic 4WD w/low range	hills	med	none	0	0	25	75	75	18.9
2014	4dr Crew Cab 5.5ft bed 355-horsepower 5.3L V8 6-speed shiftable automatic RWD	flat	light	hvy	5	10	0	85	63	25.0
2011	4dr Extended Cab 6.5ft bed 403-horsepower 6.2L V8 6-speed shiftable automatic RWD	flat	med	light	5	10	25	60	75	16.5
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2011	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic RWD	flat	med	hvy	5	0	25	70	60	18.3
2011	4dr Extended Cab 6.5ft bed 302-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	hills	light	none	3	18	42	37	70	15.2
2010	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	light	10	35	15	40	71	15.8
2010	4dr Crew Cab 5.5ft bed 403-horsepower 6.2L V8 6-speed shiftable automatic AWD	hills	med	light	0	25	25	50	60	18.5
2010	2dr Regular Cab 6.5ft bed 302-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	18	1	0	81	68	18.0
2009	4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8 6-speed shiftable automatic 4WD w/low range	flat	med	none	3	8	23	68	63	17.3
2009	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	hills	med	none	5	80	0	15	75	15.4
2009	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 6-speed shiftable automatic 4WD w/low range	flat	light	hvy	0	0	0	100	110	16.8
2009	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	light	8	28	17	47	65	17.9
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	0	10	0	90	100	20.3
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	17	22	27	34	60	17.0
2008	4dr Extended Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	0	33	25	42	70	17.0
2008	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	9	0	27	64	60	17.9
2008	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	hills	lead	none	18	0	33	50	115	14.0
2008	2dr Regular Cab 8ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	light	light	0	0	10	90	65	22.0
2008	2dr Regular Cab 6.5ft bed 195-horsepower 4.3L V6 4-speed automatic RWD	flat	light	none	5	10	10	75	60	19.5
2007	4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8 4-speed automatic 4WD w/low range	hills	light	light	0	10	10	80	60	14.1
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	12	37	25	27	75	17.7
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	light	5	0	53	43	70	14.1
2007	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 4-speed automatic RWD	flat	med	light	5	30	7	59	70	18.1
2007	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 4-speed automatic 4WD w/low range	flat	med	none	23	3	0	74	75	16.5
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	light	10	30	45	15	60	18.1
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	4	10	9	77	66	18.4
2007	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	5	65	0	30	60	16.7
2006	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	30	20	20	30	100	14.7
2006	4dr Extended Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	10	40	25	25	65	18.5
2006	4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8 4-speed automatic AWD	flat	med	none	5	20	50	25	65	15.3
2006	4dr Crew Cab 5.5ft bed 310-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	none	2	80	10	8	70	16.8
2005	4dr Extended Cab 6.5ft bed 310-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	light	7	11	13	69	62	16.0
2005	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	hvy	4	8	88	0	N/A	17.5
2005	4dr Extended Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic 4WD w/low range	flat	light	light	0	0	0	100	110	17.4
2005	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	0	10	10	81	68	16.2
2005	2dr Regular Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic RWD	flat	med	hvy	0	2	18	80	65	19.5
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	13	13	13	60	60	17.3
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	hills	v.lt	none	0	20	10	70	100	12.5
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	0	10	20	70	60	16.8
2001	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	med	none	0	40	0	60	70	14.9
2001	2dr Regular Cab 6.5ft bed 270-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	0	40	0	60	110	77.8

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This page shows only averages. See all the GMC Sierra 1500 fuel economy data.

Toyota Avalon 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
2015	4dr Sedan 268-horsepower 3.5L V6 6-speed shiftable automatic FWD	flat	med	light	15	25	27	33	50	23.5
2015	4dr Sedan 156-horsepower 2.5L I4 Hybrid CVT FWD	flat	v.lt	light	1	4	5	90	70	42.0
2013	4dr Sedan 156-horsepower 2.5L I4 Hybrid CVT FWD	flat	light	light	4	11	45	40	67	38.8
2011	4dr Sedan 268-horsepower 3.5L V6 6-speed shiftable automatic FWD	flat	med	light	9	15	24	52	82	26.2
2009	4dr Sedan 268-horsepower 3.5L V6 6-speed shiftable automatic FWD	hills	light	light	0	30	10	60	70	24.7
2008	4dr Sedan 268-horsepower 3.5L V6 6-speed shiftable automatic FWD	flat	light	hvy	0	28	44	29	60	24.0
2007	4dr Sedan 268-horsepower 3.5L V6 5-speed shiftable automatic FWD	flat	light	light	8	19	25	48	68	25.5
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2006	4dr Sedan 268-horsepower 3.5L V6 5-speed shiftable automatic FWD	flat	light	hvy	1	11	25	63	70	26.9
2005	4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic FWD	flat	light	none	3	17	28	53	66	25.2
2004	4dr Sedan 210-horsepower 3.0L V6 4-speed automatic FWD	flat	med	light	13	17	19	52	65	21.0
2003	4dr Sedan 210-horsepower 3.0L V6 4-speed automatic FWD	hills	med	hvy	10	18	3	70	73	26.3
2002	4dr Sedan 210-horsepower 3.0L V6 4-speed automatic FWD	flat	light	none	0	0	73	28	70	23.7
2000	4dr Sedan 210-horsepower 3.0L V6 4-speed automatic FWD	flat	med	light	1	14	18	67	98	23.5

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This page shows only averages. See all the Toyota Avalon fuel economy data.

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What Our Members Are Saying about the Real Gas Mileage of the GMC Sierra 1500

GMC Sierra 1500 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2004	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Its great. see full GMC Sierra 1500 review

GMC Sierra 1500 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2006	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Fuel economy is a suggestion - the truck, like all trucks, gets mediocre fuel economy. see full GMC Sierra 1500 review

TrueDelta Reviews the Real Gas Mileage of the Toyota Avalon

Toyota Avalon Real Gas Mileage: Pros
Year	Comment
2013	The Avalon's EPA ratings of 21 mpg city, 31 mpg highway are the best of any V6-powered large sedan. The Azera's numbers aren't too far behind (20/29). The LaCrosse's are (17/27). In our suburban driving we roughly matched the city figure. On the highway, though, we measured about 27. A number of factors might explain the shortfall. With a 70 mph limit, we were cruising well above the maximum speed of the EPA test cycle. Also, every seat was occupied and the trunk was chock full of luggage. Desire better fuel economy? Well, for the first time the Avalon is also available with a hybrid powertrain, specifically the same 200-horsepower (combined) unit available in the Camry. With this engine, the EPA ratings are 40/39. But you'll give up the more effortless acceleration and sweeter sound of the 268-horsepower V6. While the 3.5-liter V6 has changed very little since its introduction in the 2006 Avalon, and lacks the latest technology such as direct injection, it feels plenty strong and is among the best-sounding V6s. At low speeds and in turns traction is the limiting factor. All-wheel-drive would help, but unlike in the Buick isn't an option. The transmission remains the same six-speed automatic Toyota has offered since 2007. It's smooth and responsive, especially in sport mode (offered with the XLE Touring and Limited). If you desire to call the shifts yourself anyway, this can be done via either paddles flanking the steering wheel or the lever. Econ mode makes top mpg easier to attain by dulling throttle responses and quickening upshifts. see full Toyota Avalon review

What Our Members Are Saying about the Real Gas Mileage of the Toyota Avalon

Toyota Avalon Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2008	4dr Sedan 268-horsepower 3.5L V6 6-speed shiftable automatic FWD	20 to 22 mpg overall, over 30 on trips. see full Toyota Avalon review
2006	4dr Sedan 268-horsepower 3.5L V6 5-speed shiftable automatic FWD	On the highway, cruising at 78 mph, with the cruise on, and the a/c on, we get 31 mpg! see full Toyota Avalon review
2006	4dr Sedan 268-horsepower 3.5L V6 5-speed shiftable automatic FWD	Outstanding - 22 city, 31 hwy, 26 combined (in warm weather - cold temps radically affect fuel economy) see full Toyota Avalon review
2006	4dr Sedan 268-horsepower 3.5L V6 5-speed shiftable automatic FWD	I find the fuel economy outstanding for a 6-cyl. engine. I have power when I ned it and the fuel economy of many 4-cyle. vehicles. see full Toyota Avalon review
2005	4dr Sedan 280-horsepower 3.5L V6 5-speed shiftable automatic FWD	Excellent mileage the entire 8 years I have owned this car. Usually I get 22-24 in town and well over 32 on the highway sometimes up to 35 mpg if I keep at 65 when the RPM runs around 2000. see full Toyota Avalon review
2002	4dr Sedan 210-horsepower 3.0L V6 4-speed automatic FWD	Average 24 mpg in town and generally 28-32 mpg on highway see full Toyota Avalon review