2023 GMC Sierra MPG
Based on data from 5 vehicles, 266 fuel-ups and 114,555 miles of driving, the 2023 GMC Sierra gets a combined Avg MPG of 22.54 with a 0.52 MPG margin of error.
Below you can see a distribution of the fuel-ups with 7 outliers (2.56%) removed.
Following shows the average MPG of each of the 5 vehicles in the system.
2023 GMC Sierras For Sale Nearby
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My Sierra
2023 GMC Sierra 1500 AT4
Added May 2023 • 39 Fuel-upsProperty of duece31
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19.2 Avg MPG
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My AT4
2023 GMC Sierra 1500 AT4 L3 DIESEL Automatic 10 Speed
Added Mar 2023 • 76 Fuel-upsProperty of Robbo2014
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26.0 Avg MPG
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White Drip
2023 GMC Sierra 1500 AT4
Added Jul 2023 • 38 Fuel-upsProperty of hawk37
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19.7 Avg MPG
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Sierra 1500 Duramax
2023 GMC Sierra 1500 SLT
Added May 2023 • 54 Fuel-upsProperty of Jorica
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24.5 Avg MPG
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2023 GMC Sierra 1500 AT4
2023 GMC Sierra 1500 AT4
Added May 2023 • 76 Fuel-upsProperty of 920AT4
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21.4 Avg MPG