2020 GMC Sierra 1500 MPG
Based on data from 192 vehicles, 15,640 fuel-ups and 5,155,451 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 (2.19%) 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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Truck
2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jun 2021 • 23 Fuel-upsProperty of texadian
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20.8 Avg MPG
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2020 GMC
2020 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Oct 2020 • 21 Fuel-upsProperty of Brame
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19.5 Avg MPG
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Sierra 1500 4x4
2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Jun 2020 • 44 Fuel-upsProperty of Cman175
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24.2 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Mar 2020 • 25 Fuel-upsProperty of chebick
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24.3 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
Added Feb 2020 • 56 Fuel-upsProperty of Buellx72
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18.2 Avg MPG
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Mike’s 2020 Sierra 1500
2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 10 Speed
Added Feb 2020 • 43 Fuel-upsProperty of Mikecompton
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15.6 Avg MPG
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2020 Sierra 1500
2020 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 10 Speed
Added Sep 2020 • 21 Fuel-upsProperty of yogi-bear
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16.6 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed
Added Aug 2020 • 11 Fuel-upsProperty of martinweber
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22.8 Avg MPG
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Dark Knight
2020 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Mar 2020 • 71 Fuel-upsProperty of RedWonder
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17.1 Avg MPG
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AT4 Duramax On 35s
2020 GMC Sierra 1500 AT4 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Mar 2020 • 71 Fuel-upsProperty of Lerew
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20.7 Avg MPG
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2020 AT4 Sierra 1500
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
Added Mar 2020 • 36 Fuel-upsProperty of Miket54
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16.3 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Elevation 2.7L L4 GAS Automatic 8 Speed
Added Jan 2021 • 6 Fuel-upsProperty of HDP_14
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16.4 Avg MPG
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“Zoee” Sierra 1500
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
Added Aug 2020 • 34 Fuel-upsProperty of plettfam
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13.9 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Elevation 3.0L L6 DIESEL Automatic 10 Speed
Added Dec 2020 • 4 Fuel-upsProperty of willsep3241
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27.4 Avg MPG
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Denali
2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed Crew Cab Pickup
Added Mar 2020 • 51 Fuel-upsProperty of hhernandez828
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26.2 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Elevation 5.3L V8 GAS Automatic 8 Speed
Added Jun 2020 • 45 Fuel-upsProperty of mrm1776
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17.6 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Dec 2020 • 3 Fuel-upsProperty of bradyt
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11.7 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 5.3L V8 GAS Automatic 10 Speed
Added Nov 2020 • 4 Fuel-upsProperty of omtz165
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16.3 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 Denali 3.0L L6 DIESEL Automatic 10 Speed
Added Oct 2020 • 6 Fuel-upsProperty of Jalal_Jalal
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22.9 Avg MPG
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My Sierra 1500
2020 GMC Sierra 1500 AT4 6.2L V8 GAS Automatic 10 Speed
Added Sep 2020 • 6 Fuel-upsProperty of unluckycharm
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16.5 Avg MPG