Chevrolet Silverado 1500 vs. GMC Sierra 1500 Fuel Economy (g/100m)

Chart is based on 311 fuel economy reports for the Chevrolet Silverado 1500 and 526 fuel economy reports for the GMC Sierra 1500.

Chevrolet Silverado 1500 g/100m

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	g/100m
2016	4dr Extended Cab 6.5ft bed 355-horsepower 5.3L V8 6-speed shiftable automatic 4WD, part-time w/low range	flat	light	none	0	16	0	84	92	29.5
2014	4dr Extended Cab 6.5ft bed 355-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	hills	light	none	1	20	24	55	58	5.3
2014	4dr Extended Cab 6.5ft bed 285-horsepower 4.3L V6 6-speed shiftable automatic RWD	flat	light	none	5	10	15	70	65	4.6
2014	4dr Crew Cab 6.5ft bed 355-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	hills	light	hvy	0	0	1	100	69	5.7
2013	4dr Extended Cab 8ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD, part-time w/low range	flat	light	none	0	17	28	55	110	36.4
2013	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	none	0	0	20	80	55	6.1
2013	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	hills	light	hvy	0	0	30	70	50	6.1
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2012	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	light	0	20	43	37	65	6.4
2012	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	v.lt	light	0	0	56	44	60	6.6
2011	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	med	hvy	0	15	25	60	70	6.1
2011	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	hills	light	hvy	5	5	30	60	65	6.1
2010	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic RWD	flat	v.lt	hvy	10	60	10	20	60	6.2
2010	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	med	none	6	33	20	41	65	6.5
2009	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	0	0	100	0	0	6.3
2009	4dr Extended Cab 6.5ft bed 295-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	hills	light	light	4	24	14	58	52	5.0
2009	4dr Crew Cab 5.5ft bed 403-horsepower 6.2L V8 6-speed shiftable automatic 4WD w/low range	flat	med	none	0	10	0	90	70	6.5
2009	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic 4WD w/low range	flat	light	none	2	4	25	69	63	6.5
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	none	0	0	0	100	75	5.8
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	hvy	2	9	34	56	68	6.1
2008	4dr Extended Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	light	11	14	15	60	65	6.9
2008	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	0	15	0	85	60	5.9
2008	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	none	20	15	15	50	65	6.3
2008	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	flat	med	light	10	40	10	40	110	37.8
2008	2dr Regular Cab 8ft bed 195-horsepower 4.3L V6 4-speed automatic RWD	hills	light	light	2	45	19	35	65	5.7
2007	4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8 4-speed automatic RWD	flat	light	none	29	29	43	0	0	7.7
2007	4dr Extended Cab 6.5ft bed 367-horsepower 6.0L V8 4-speed automatic 4WD w/low range	flat	v.lt	light	1	5	3	91	60	6.6
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	7	30	27	37	75	5.9
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	none	7	15	19	59	69	5.6
2007	4dr Extended Cab 6.5ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	v.lt	none	10	20	10	60	60	6.4
2007	4dr Extended Cab 6.5ft bed 295-horsepower 4.8L V8 4-speed automatic 4WD w/low range	hills	light	none	10	25	40	25	75	6.3
2007	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 4-speed automatic 4WD w/low range	flat	lead	light	10	10	40	40	80	7.9
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	light	18	23	35	25	65	5.8
2007	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	med	hvy	0	10	40	50	70	5.9
2006	4dr Extended Cab 6.5ft bed 310-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	light	0	3	7	90	69	5.5
2006	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	6	19	10	66	68	5.5
2006	4dr Crew Cab 6.5ft bed 300-horsepower 6.0L V8 4-speed automatic 4WD w/low range	flat	light	none	16	16	37	32	60	8.0
2006	4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8 4-speed automatic 4WD w/low range	flat	med	light	11	22	11	56	65	6.6
2006	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	med	hvy	0	15	50	35	60	5.5
2006	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	none	5	60	10	25	60	6.3
2006	4dr Crew Cab 5.5ft bed 285-horsepower 4.8L V8 4-speed automatic RWD	flat	light	light	10	10	10	70	60	4.8
2006	4dr Crew Cab 5.5ft bed 285-horsepower 4.8L V8 4-speed automatic 4WD w/low range	flat	light	none	0	40	0	60	65	6.7
2005	4dr Extended Cab 6.5ft bed 345-horsepower 6.0L V8 4-speed automatic AWD	flat	v.lt	light	0	20	20	60	55	5.7
2005	4dr Extended Cab 6.5ft bed 310-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	hills	med	none	9	9	64	18	65	6.3
2005	4dr Extended Cab 6.5ft bed 310-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	med	light	8	13	47	31	72	5.9
2005	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	med	hvy	0	80	5	15	60	6.3
2005	4dr Extended Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic RWD	flat	med	hvy	0	0	0	100	80	5.3
2005	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	med	light	5	20	40	35	75	5.9
2005	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	hills	light	none	2	13	12	73	68	5.8
2005	2dr Regular Cab 8ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	med	light	0	0	80	20	60	6.3
2005	2dr Regular Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	light	hvy	2	3	70	25	65	5.3
2005	2dr Regular Cab 6.5ft bed 195-horsepower 4.3L V6 5-speed manual RWD	flat	med	hvy	5	5	5	85	75	5.6
2004	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	med	light	2	18	34	46	62	5.8
2004	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	none	0	0	5	95	70	5.7
2004	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	mtns	light	light	1	3	9	87	61	6.6
2004	4dr Extended Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic RWD	flat	light	none	0	0	50	50	65	5.6
2004	4dr Extended Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	flat	light	none	0	20	0	80	60	5.7
2004	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	lead	hvy	13	38	5	45	75	6.1
2004	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	light	26	1	1	73	67	6.1
2004	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	mtns	light	none	23	23	25	30	60	5.6
2004	2dr Regular Cab 8ft bed 285-horsepower 4.8L V8 5-speed manual 4WD, part-time w/low range	hills	light	none	0	0	18	83	61	6.0
2004	2dr Regular Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	hills	med	hvy	33	33	11	22	75	6.1
2003	4dr Extended Cab 6.5ft bed 345-horsepower 6.0L V8 4-speed automatic AWD	flat	lead	light	13	13	43	33	88	10.9
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD w/low range	flat	light	light	1	10	9	80	70	6.3
2003	4dr Crew Cab 6.5ft bed 300-horsepower 6.0L V8 4-speed automatic 4WD w/low range	hills	light	none	1	10	15	74	70	7.3
2003	2dr Regular Cab 8ft bed 275-horsepower 4.8L V8 4-speed automatic RWD	flat	med	none	5	5	10	80	75	4.8
2002	4dr Extended Cab 8ft bed 285-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	flat	light	none	0	0	45	55	55	5.8
2002	4dr Extended Cab 8ft bed 275-horsepower 4.8L V8 4-speed automatic 4WD, part-time w/low range	flat	light	light	5	5	5	85	60	5.6
2002	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic RWD	flat	v.lt	hvy	0	0	95	5	70	5.5
2002	4dr Extended Cab 6.5ft bed 275-horsepower 4.8L V8 4-speed automatic RWD	flat	med	hvy	0	0	30	70	58	5.3
2002	2dr Regular Cab 6.5ft bed 275-horsepower 4.8L V8 4-speed automatic RWD	flat	light	none	19	23	27	31	60	5.0

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This page shows only averages. See all the Chevrolet Silverado 1500 fuel economy data.

GMC Sierra 1500 g/100m

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	g/100m
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	4.1
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	4.6
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	4.8
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	31.1
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	5.3
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	4.2
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	6.1
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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	5.5
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	6.6
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	13.4
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	5.4
2010	2dr Regular Cab 6.5ft bed 302-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	18	1	0	81	68	5.6
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	5.8
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	6.5
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	32.9
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	5.8
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	0	10	0	90	100	27.3
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	5.9
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	5.9
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	5.6
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	40.1
2008	2dr Regular Cab 8ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	light	light	0	0	10	90	65	4.5
2008	2dr Regular Cab 6.5ft bed 195-horsepower 4.3L V6 4-speed automatic RWD	flat	light	none	5	10	10	75	60	5.1
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	7.1
2007	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	12	37	25	27	75	5.7
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	7.1
2007	4dr Crew Cab 5.5ft bed 367-horsepower 6.0L V8 4-speed automatic RWD	flat	med	light	5	30	7	59	70	5.5
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	6.1
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	5.5
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	5.5
2007	4dr Crew Cab 5.5ft bed 295-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	5	65	0	30	60	6.0
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	37.6
2006	4dr Extended Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	10	40	25	25	65	5.4
2006	4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8 4-speed automatic AWD	flat	med	none	5	20	50	25	65	6.5
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	6.0
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	6.2
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	5.7
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	31.8
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	6.2
2005	2dr Regular Cab 6.5ft bed 285-horsepower 4.8L V8 4-speed automatic RWD	flat	med	hvy	0	2	18	80	65	5.1
2003	4dr Extended Cab 6.5ft bed 285-horsepower 5.3L V8 4-speed automatic RWD	flat	light	light	13	13	13	60	60	5.8
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	44.2
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	6.0
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	6.8
2001	2dr Regular Cab 6.5ft bed 270-horsepower 4.8L V8 4-speed automatic RWD	flat	med	light	0	40	0	60	110	7.1

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

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What Our Members Are Saying about the Real Gas Mileage of the Chevrolet Silverado 1500

Chevrolet Silverado 1500 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2008	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 4-speed automatic RWD	I have the 1500 ext cab 2wd model that includes the 5.3 l v-8 with management. The truck gets 26 mpg on the highway! The average for the truck with over 6000 miles city/highway is now 20.6! see full Chevrolet Silverado 1500 review
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	For full size truck with V8 I get 17-18 mpg in mixed driving. see full Chevrolet Silverado 1500 review
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Best in its class see full Chevrolet Silverado 1500 review
2006	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD w/low range	With the specific gears I have in my truck, I get 20+ MPG on the highway...and I have a crew cab truck. City mileage is right in-line with the EPA of 14, but it is no worse than the others. see full Chevrolet Silverado 1500 review
2006	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	Good for a pickup truck. see full Chevrolet Silverado 1500 review
2006	4dr Extended Cab 6.5ft bed 295-horsepower 5.3L V8 4-speed automatic RWD	The 5.3L gets an impressive 20mpg on the freeway and with a tonneau, about 21. Mixed driving is about 15-17mpg and purely city driving nets between 14-16mpg. Towing economy is not bad at about 12-13mpg with a light load and 9-11mpg with a heavy load. see full Chevrolet Silverado 1500 review

Chevrolet Silverado 1500 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2010	4dr Extended Cab 6.5ft bed 315-horsepower 5.3L V8 6-speed shiftable automatic RWD	Much worse than my last truck( 2005 Sileverado) In town 10 to 13 Road at speed limit 19-20 see full Chevrolet Silverado 1500 review
2007	4dr Crew Cab 5.5ft bed 315-horsepower 5.3L V8 4-speed automatic 4WD w/low range	Highway mileage could be beter. see full Chevrolet Silverado 1500 review
2004	4dr Crew Cab 5.5ft bed 295-horsepower 5.3L V8 4-speed automatic 4WD, part-time w/low range	Granted this is a truck but I did not like the fact that I was getting 14 mpg when the price of fuel was skyrocketing. This was never a good choice for fuel mileage. see full Chevrolet Silverado 1500 review
2004	4dr Crew Cab 5.5ft bed 345-horsepower 6.0L V8 4-speed automatic AWD	Big engine sucks gas - 8mpg on tests see full Chevrolet Silverado 1500 review

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