2021 GMC Sierra 1500 MPG
Based on data from 250 vehicles, 17,775 fuel-ups and 6,779,747 miles of driving, the 2021 GMC Sierra 1500 gets a combined Avg MPG of 20.33 with a 0.08 MPG margin of error.
Below you can see a distribution of the fuel-ups with 92 outliers (0.51%) removed.
Following shows the average MPG of each of the 250 vehicles in the system.
2021 GMC Sierra 1500s For Sale Nearby
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My Sierra 1500
2021 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed
Added Jan 2022 • 29 Fuel-upsProperty of jmdunleavy
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16.2 Avg MPG
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21 GMC Elevation 3.0 Duramax
2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Sep 2021 • 133 Fuel-upsProperty of jkluge
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24.6 Avg MPG
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Sasquatch Hunter
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Aug 2021 • 47 Fuel-upsProperty of Aldrummond
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20.5 Avg MPG
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Denali green
2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Jul 2022 • 21 Fuel-upsProperty of travelingman1
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22.9 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Oct 2021 • 41 Fuel-upsProperty of us244938
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24.7 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Apr 2021 • 44 Fuel-upsProperty of Frayed_Ends
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22.0 Avg MPG
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GMC Black 11 2021
2021 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 10 Speed
Added Nov 2021 • 64 Fuel-upsProperty of Robbo1968
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17.5 Avg MPG
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21 Sierra 1500
2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
Added Apr 2021 • 52 Fuel-upsProperty of thekevin
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25.0 Avg MPG
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MiniMax
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Feb 2021 • 67 Fuel-upsProperty of cjel23
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24.3 Avg MPG
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My Sierra AT4 1500
2021 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
Added Apr 2021 • 98 Fuel-upsProperty of mich1989
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15.6 Avg MPG
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Sierra 1500
2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Jul 2021 • 44 Fuel-upsProperty of Mason20
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25.3 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
Added Jul 2021 • 99 Fuel-upsProperty of John30563
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24.0 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Mar 2022 • 13 Fuel-upsProperty of jesseallenpatterson
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22.2 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added May 2022 • 4 Fuel-upsProperty of Seakuv
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32.5 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
Added Apr 2022 • 7 Fuel-upsProperty of JohnPro
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26.3 Avg MPG
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Family Truckster
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Mar 2022 • 8 Fuel-upsProperty of Mtnbound
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22.3 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Feb 2021 • 31 Fuel-upsProperty of pluc_val
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25.1 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Feb 2021 • 45 Fuel-upsProperty of beech76
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22.8 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
Added Dec 2020 • 39 Fuel-upsProperty of michaelm91
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14.5 Avg MPG
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My Sierra 1500
2021 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Jun 2021 • 51 Fuel-upsProperty of jsetti
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23.8 Avg MPG