2021 GMC Sierra 1500 MPG
Based on data from 181 vehicles, 5,988 fuel-ups and 2,240,235 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 20.10 with a 0.15 MPG margin of error.
Below you can see a distribution of the fuel-ups with 20 outliers (0.33%) removed.
Following shows the average MPG of each of the 181 vehicles in the system.
2021 GMC Sierra 1500s For Sale Nearby
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Sierra
2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Jan 2022 • 34 Fuel-upsProperty of jc9995
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25.3 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Aug 2021 • 37 Fuel-upsProperty of 76109
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18.9 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Jul 2021 • 20 Fuel-upsProperty of muddernuker
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23.1 Avg MPG
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Arnold
2021 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
Added Nov 2020 • 153 Fuel-upsProperty of st333
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13.8 Avg MPG
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2021 Sierra 1500
2021 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 10 Speed
Added Apr 2021 • 37 Fuel-upsProperty of yogi-bear
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16.6 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Dec 2020 • 131 Fuel-upsProperty of SilverSully83
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25.0 Avg MPG
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GMC Blackout
2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
Added Aug 2021 • 38 Fuel-upsProperty of brockon
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20.3 Avg MPG
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Bigfoot
2021 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Mar 2022 • 15 Fuel-upsProperty of White-Denali
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16.2 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
Added Sep 2021 • 92 Fuel-upsProperty of jblomseth
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17.0 Avg MPG
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21 GMC Sierra AT4
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 8 Speed
Added Oct 2021 • 23 Fuel-upsProperty of bhess19
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22.1 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 SLE 3.0L L6 DIESEL Automatic 10 Speed
Added Sep 2021 • 22 Fuel-upsProperty of Istijour
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23.7 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
Added Jun 2021 • 96 Fuel-upsProperty of jtowns
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16.4 Avg MPG
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GMC Sierra 1500 Denali
2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Dec 2021 • 25 Fuel-upsProperty of Slugster
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23.6 Avg MPG
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Work Sierra 1500
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Apr 2021 • 100 Fuel-upsProperty of ChasN5ZXN
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22.6 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added May 2021 • 76 Fuel-upsProperty of Silverflash22
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22.8 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Dec 2021 • 32 Fuel-upsProperty of MoeD
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23.8 Avg MPG
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GMC Sierra 1500 Elevation
2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Dec 2021 • 11 Fuel-upsProperty of amtrak8
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25.3 Avg MPG
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Sasha 2
2021 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic Crew Cab Pickup
Added Apr 2021 • 46 Fuel-upsProperty of fides893
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15.0 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
Added Jul 2021 • 85 Fuel-upsProperty of John30563
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24.0 Avg MPG
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Sierra
2021 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
Added Oct 2021 • 65 Fuel-upsProperty of avaag
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16.1 Avg MPG