AutoSpecData

GMC Sierra MPG & Fuel Economy

The 2026 GMC Sierra gets up to 68 MPG combined (75 city / 61 highway) in EPA testing.

Latest model year (2026):

The GMC Sierra gets up to 68 MPG combined (75 city / 61 highway) in the Auto (A1) trim.

Verifiedfueleconomy.gov · Verified August 11, 2026
OverviewMPGEngine SpecsFuel CostTransmissionDrivetrainVehicle ClassMaintenanceDimensionsEV Range

GMC Sierra MPG — All Years

YearTrimEngineFuelCity (MPG)Hwy (MPG)Combined (MPG)
2026Auto (A1)—Electricity695964
2026Auto (A1)—Electricity746067
2026Auto (A1)—Electricity756168
2026Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel212423
2026Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel192019
2026Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222624
2026Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel232825
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162017
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141615
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141716
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2026Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2026Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141715
2026Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141615
2026Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline151916
2026Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline161717
2026Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline172018
2026Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline171817
2026Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline172119
2026Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182120
2025Auto (A1)—Electricity705964
2025Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel212423
2025Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel232926
2025Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222624
2025Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel192019
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141615
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162017
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2025Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2025Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141715
2025Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141615
2025Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline151916
2025Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline171918
2025Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline172119
2025Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline161716
2025Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182119
2025Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline171817
2024Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel232925
2024Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel232724
2024Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel192019
2024Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel212322
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162018
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162018
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2024Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2024Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141715
2024Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141615
2024Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline151916
2024Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline172119
2024Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline161716
2024Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline172018
2024Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline171817
2024Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182220
2023Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel212322
2023Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222724
2023Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel242926
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151716
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162018
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162018
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162017
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162017
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151816
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2023Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2023Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141715
2023Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline151917
2023Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141715
2023Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182019
2023Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2023Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192120
2023Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182019
2023Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline171817
2022Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel233026
2022Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel202321
2022Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222624
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141916
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141916
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162017
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline131715
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151716
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline131715
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151817
2022Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2022Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141916
2022Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline152017
2022Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline131714
2022Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141816
2022Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141615
2022Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2022Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141816
2022Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline172018
2022Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2022Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline161817
2022Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline172018
2022Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2022Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2022Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2022Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141815
2022Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2022Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2022Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2022Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2021Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222624
2021Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel233026
2021Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222624
2021Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162219
2021Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152118
2021Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2021Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152117
2021Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline151917
2021Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline152016
2021Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline141916
2021Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline162017
2021Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline141615
2021Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline151917
2021Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline162117
2021Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline152017
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline142116
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline142016
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141816
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141815
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline131814
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152117
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline131714
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2021Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141816
2021Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline202321
2021Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline202321
2021Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182119
2021Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182019
2021Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152217
2021Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline142016
2021Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline172319
2021Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2021Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline142016
2021Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2020Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222624
2020Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel222624
2020Auto 10-spd, 6 cyl, 3.0 L6 3.0LDiesel233026
2020Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162219
2020Auto 10-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2020Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline152017
2020Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline151917
2020Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline141615
2020Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline162117
2020Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline152017
2020Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline151917
2020Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2020Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2020Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152117
2020Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2020Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141816
2020Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141916
2020Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141815
2020Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2020Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2020Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2020Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline202321
2020Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline172420
2020Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline172319
2020Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2020Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2019Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline152017
2019Auto 10-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline151917
2019Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline152017
2019Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline162117
2019Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline141715
2019Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline151917
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152217
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152117
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152117
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151916
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141715
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline141916
2019Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2019Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline182019
2019Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2019Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline192220
2019Auto 8-spd, 4 cyl, 2.7 L4 2.7LRegular Gasoline202321
2019Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152117
2019Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline172319
2019Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline172419
2019Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2018Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline172219
2018Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline182420
2018Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2018Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2018Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2018Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2018Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2018Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2018Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2018Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline182420
2018Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2018Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2018Auto 8-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline152017
2018Auto 8-spd, 8 cyl, 6.2 L8 6.2LPremium Gasoline152117
2017Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline172219
2017Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline182420
2017Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2017Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2017Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2017Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2017Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2017Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2017Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline182420
2017Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2017Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2017Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2017Auto 8-spd, 8 cyl, 6.2 L8 6.2LRegular Gasoline152017
2017Auto 8-spd, 8 cyl, 6.2 L8 6.2LRegular Gasoline152117
2016Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline182320
2016Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline172219
2016Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2016Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2016Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2016Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2016Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2016Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2016Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152117
2016Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2016Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162118
2016Auto 8-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline182420
2016Auto 8-spd, 8 cyl, 6.2 L8 6.2LRegular Gasoline152117
2016Auto 8-spd, 8 cyl, 6.2 L8 6.2LRegular Gasoline152117
2015Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline162118
2015Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline182420
2015Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline172219
2015Auto 6-spd, 6 cyl, 4.3 L6 4.3LRegular Gasoline162018
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline152017
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline151917
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162319
2015Auto 6-spd, 8 cyl, 5.3 L8 5.3LRegular Gasoline162218
2015Auto 8-spd, 8 cyl, 6.2 L8 6.2LRegular Gasoline152117
2015Auto 8-spd, 8 cyl, 6.2 L8 6.2LRegular Gasoline152117

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

GMC Sierra MPG FAQ

What is the MPG of the GMC Sierra?

The GMC Sierra gets up to 68 MPG combined (75 city / 61 highway) in the 2026 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which GMC Sierra trim has the best fuel economy?

The Auto (A1) trim offers the best combined fuel economy at 68 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.

All GMC Sierra specifications

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