2020 GMC Sierra 1500 MPG
Based on data from 190 vehicles, 13,884 fuel-ups and 4,585,691 miles of driving, the 2020 GMC Sierra 1500 gets a combined Avg MPG of 18.22 with a 0.08 MPG margin of error.
Below you can see a distribution of the fuel-ups with 318 outliers (2.24%) removed.
Following shows the average MPG of each of the 190 vehicles in the system.
2020 GMC Sierra 1500s For Sale Nearby
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My Sierra 1500
2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
Added Oct 2021 • 200 Fuel-upsProperty of AnglerAT
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25.2 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Oct 2020 • 150 Fuel-upsProperty of surfintx2004
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20.1 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
Added Dec 2023 • 21 Fuel-upsProperty of sslack1970
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17.4 Avg MPG
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Sierra 1500
2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
Added Feb 2021 • 157 Fuel-upsProperty of bmrohrer
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14.9 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
Added Oct 2020 • 207 Fuel-upsProperty of Kurrirra
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15.5 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Jan 2024 • 10 Fuel-upsProperty of Jbonebrake
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23.9 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
Added Nov 2020 • 75 Fuel-upsProperty of rbennett011
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14.5 Avg MPG
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AT4
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
Added Jul 2020 • 173 Fuel-upsProperty of JW46
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16.4 Avg MPG
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2020 GMC Sierra
2020 GMC Sierra 1500 Elevation 5.3L V8 GAS Crew Cab Pickup
Added Dec 2023 • 18 Fuel-upsProperty of cmore
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16.8 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Aug 2023 • 53 Fuel-upsProperty of eizan70
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17.2 Avg MPG
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2020 Sierra
2020 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 8 Speed Extended Cab Pickup
Added Feb 2020 • 231 Fuel-upsProperty of jamesthebikeguy
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19.6 Avg MPG
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2020 AT4
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Nov 2023 • 28 Fuel-upsProperty of ZPAXTON
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22.2 Avg MPG
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Diesel Sierra 1500
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Oct 2020 • 71 Fuel-upsProperty of Along411
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23.4 Avg MPG
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Black Betty
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
Added May 2020 • 84 Fuel-upsProperty of taintfair
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15.5 Avg MPG
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2020 GMC Sierra 1500 Denali
2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Jun 2020 • 87 Fuel-upsProperty of sk83
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22.5 Avg MPG
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Kerry AT4
2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
Added May 2020 • 180 Fuel-upsProperty of kmcloukey
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14.7 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Jun 2021 • 74 Fuel-upsProperty of weedtrucker
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25.1 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 2.7L L4 GAS Automatic 6 Speed
Added Apr 2023 • 26 Fuel-upsProperty of Stenwood
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19.4 Avg MPG
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Pretty Ass Red Sierra 1500
2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Jul 2020 • 87 Fuel-upsProperty of BrianK
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24.8 Avg MPG
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GMC Sierra 1500
2020 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Feb 2021 • 210 Fuel-upsProperty of mcsgary
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18.8 Avg MPG