2020 GMC Sierra 1500 MPG
Based on data from 192 vehicles, 15,637 fuel-ups and 5,154,692 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 351 outliers (2.20%) removed.
Following shows the average MPG of each of the 192 vehicles in the system.
2020 GMC Sierra 1500s For Sale Nearby
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My Sierra 1500
2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Apr 2020 • 6 Fuel-upsProperty of brandonmendoza
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21.5 Avg MPG
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2020 Sierra 1500 - P391
2020 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 10 Speed
Added Aug 2020 • 17 Fuel-upsProperty of shatub
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14.8 Avg MPG
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GMC
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Sep 2020 • 4 Fuel-upsProperty of snowfreak566
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18.3 Avg MPG
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2020 GMC 3.0 Diesel
2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Jul 2020 • 23 Fuel-upsProperty of rhbjr81
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22.8 Avg MPG
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Sierra2020 Duramax
2020 GMC Sierra 1500 SLE 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Mar 2020 • 16 Fuel-upsProperty of tdidirtbag
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25.6 Avg MPG
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GMC Sierra
2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Apr 2020 • 15 Fuel-upsProperty of Bradalay
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16.6 Avg MPG
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Sierra 1500 Duramax
2020 GMC Sierra 1500 SLT 3.0L L6 DIESEL Automatic 10 Speed
Added Mar 2020 • 14 Fuel-upsProperty of idlejunk
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23.5 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Mar 2020 • 28 Fuel-upsProperty of Fischer05
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26.5 Avg MPG
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SuperBlue
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Jun 2020 • 4 Fuel-upsProperty of nateg20
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18.3 Avg MPG
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GMC Sierra 1500 AT4
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Mar 2020 • 6 Fuel-upsProperty of jlpiccoli
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14.2 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Mar 2020 • 4 Fuel-upsProperty of 1XFD4
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22.3 Avg MPG
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Sierra 1500 SLT X31
2020 GMC Sierra 1500 SLT
Added Jan 2020 • 5 Fuel-upsProperty of kkib2
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17.9 Avg MPG