GMC Sierra 1500 vs. Kia Optima MPG

Chart is based on 526 fuel economy reports for the GMC Sierra 1500 and 152 fuel economy reports for the Kia Optima.

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.

Kia Optima 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
2019	4dr Sedan turbocharged 245hp 2.0L I4 6-speed shiftable automatic FWD	flat	med	hvy	0	10	50	40	70	26.7
2017	4dr Sedan 154-horsepower 2.0L I4 Hybrid 6-speed shiftable automatic FWD	flat	light	light	30	30	20	20	70	52.6
2016	4dr Sedan turbocharged 178hp 1.6L I4 7-speed automated manual FWD	hills	light	light	6	0	14	80	67	39.0
2013	4dr Sedan turbocharged 274hp 2.0L I4 6-speed shiftable automatic FWD	flat	light	light	0	24	21	56	69	25.5
2013	4dr Sedan 200-horsepower 2.4L I4 6-speed shiftable automatic FWD	flat	light	none	0	32	14	54	83	27.1
2013	4dr Sedan 159-horsepower 2.4L I4 Hybrid 6-speed shiftable automatic FWD	flat	v.lt	none	2	13	15	71	102	32.5
2012	4dr Sedan turbocharged 274hp 2.0L I4 6-speed shiftable automatic FWD	hills	light	light	4	18	39	39	72	25.6
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2012	4dr Sedan 200-horsepower 2.4L I4 6-speed shiftable automatic FWD	flat	med	none	0	4	20	76	69	32.3
2011	4dr Sedan turbocharged 274hp 2.0L I4 6-speed shiftable automatic FWD	hills	med	light	0	5	28	68	70	28.0
2011	4dr Sedan 200-horsepower 2.4L I4 6-speed shiftable automatic FWD	hills	light	none	4	7	21	67	66	28.7
2011	4dr Sedan 200-horsepower 2.4L I4 6-speed manual FWD	flat	med	light	0	5	20	75	75	30.0
2010	4dr Sedan 194-horsepower 2.7L V6 5-speed shiftable automatic FWD	flat	med	light	0	10	70	20	75	20.0
2010	4dr Sedan 175-horsepower 2.4L I4 5-speed shiftable automatic FWD	flat	light	none	0	0	20	80	63	36.2
2009	4dr Sedan 175-horsepower 2.4L I4 5-speed shiftable automatic FWD	flat	light	light	5	12	16	67	65	29.1
2008	4dr Sedan 162-horsepower 2.4L I4 5-speed shiftable automatic FWD	flat	light	light	20	60	10	10	60	26.3
2008	4dr Sedan 162-horsepower 2.4L I4 5-speed manual FWD	flat	lead	light	30	15	30	25	75	26.2
2007	4dr Sedan 185-horsepower 2.7L V6 5-speed shiftable automatic FWD	flat	med	none	7	13	3	78	108	29.5
2007	4dr Sedan 161-horsepower 2.4L I4 5-speed shiftable automatic FWD	hills	med	none	1	36	48	15	63	23.2
2006.5	4dr Sedan 185-horsepower 2.7L V6 5-speed shiftable automatic FWD	flat	light	hvy	6	4	33	58	66	24.6
2006.5	4dr Sedan 161-horsepower 2.4L I4 5-speed shiftable automatic FWD	flat	light	light	18	16	9	56	63	28.9
2006.5	4dr Sedan 161-horsepower 2.4L I4 5-speed manual FWD	flat	light	hvy	0	0	10	90	60	30.0
2005	4dr Sedan 170-horsepower 2.7L V6 4-speed shiftable automatic FWD	hills	lead	light	5	95	0	0	0	12.1
2004	4dr Sedan 138-horsepower 2.4L I4 5-speed manual FWD	flat	light	hvy	0	0	5	95	70	30.0

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This page shows only averages. See all the Kia Optima 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 Kia Optima

Kia Optima Real Gas Mileage: Pros
Year	Comment
2013	Many auto makers are substituting turbocharged fours for V6s because of their theoretically superior fuel economy. The Kia Optima SXL earns EPA ratings of 22 mpg city, 34 highway. The similarly turbo-foured Ford Fusion comes close, 22/33. The most fuel efficient V6, in the new Honda Accord, manages 21/34 without paddle shifters, but 21/32 with them. Trip computer numbers suggest a one-to-two mpg advantage for the Kia in real-world suburban driving--perhaps too close to call since these devices aren't terribly precise. Figure just under 20 with a heavy foot, mid-20s if you resist the temptation, and just over 30 with a very light foot and luck with the lights. All of these figures are with the engine warmed up. In cold weather, fuel economy is in the mid-teens for the first mile or two. An eco mode makes little noticeable difference in either how the car drives or its fuel economy. These numbers don't seem particularly good? Recall that the Kia Optima SXL is a very quick car. You won't find a 274-horsepower sedan that does better without the aid of a battery pack. see full Kia Optima review

What Our Members Are Saying about the Real Gas Mileage of the Kia Optima

Kia Optima Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	4dr Sedan turbocharged 274hp 2.0L I4 6-speed shiftable automatic FWD	I find fuel economy, in mixed driving, to be on par with a V6 of comparable power. I usually get about 24 MPG in combined driving. However, on a recent road trip, I had 32 MPG on one tank. It's perhaps slightly better than the Acura TL I had, but one big bonus: the Acura required premium unleaded. On the Kia Optima, however, the manufacturer only calls for regular unleaded. Over time, that can mean a significant savings. see full Kia Optima review
2012	4dr Sedan turbocharged 274hp 2.0L I4 6-speed shiftable automatic FWD	This is my biggest (and only real) complaint with the Optima. It advertises fuel economy of 22 city, 34 highway. I drive a lot (100 mile round trip daily, with more than half of it being highway miles). Admittedly, I have a heavy foot, but I regularly get about 24-25 mpg combined, with the car in ECO mode. The best tank of gas I ever got was a little over 28 mpg. (I calculate it manually, don't rely on the on-board MPG estimates, as they are always 3-5 MPG more generous than reality.) see full Kia Optima review
2011	4dr Sedan 200-horsepower 2.4L I4 6-speed shiftable automatic FWD	High 30s on the highway and 29-30 overall with a lot of power. Active eco. setting for better economy. see full Kia Optima review
2011	4dr Sedan turbocharged 274hp 2.0L I4 6-speed shiftable automatic FWD	33 mpg on 200 mile trips at about 65 mph avg. see full Kia Optima review
2008	4dr Sedan 162-horsepower 2.4L I4 5-speed manual FWD	Decent fuel mileage at this point for a mid-size sedan. see full Kia Optima review
2007	4dr Sedan 161-horsepower 2.4L I4 5-speed shiftable automatic FWD	25-30 city/hwy see full Kia Optima review
2007	4dr Sedan 161-horsepower 2.4L I4 5-speed shiftable automatic FWD	It may be a bit borderline in 100% city driving (19-20 mpg), but it gets 33mpg+ on the open highway, with only a 1-2 mpg penalty for using A/C. see full Kia Optima review
2007	4dr Sedan 161-horsepower 2.4L I4 5-speed shiftable automatic FWD	got 42 mgh yesteerday on a 120 minute drive 25%/75% in town/highway driving. Like paying $2.25 per gallon, see full Kia Optima review
2005	4dr Sedan 170-horsepower 2.7L V6 4-speed shiftable automatic FWD	AS above see full Kia Optima review

Kia Optima Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2012	4dr Sedan turbocharged 274hp 2.0L I4 6-speed shiftable automatic FWD	I'd recommend this car in a heartbeat. I honestly like this styling even more than the updates they've made since 2012. My biggest cons are the fuel economy and the lack of a manual transmission on any models other than the base model. see full Kia Optima review