2018 GMC Sierra 1500 MPG
Based on data from 180 vehicles, 14,620 fuel-ups and 4,139,150 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.02 with a 0.06 MPG margin of error.
Below you can see a distribution of the fuel-ups with 213 outliers (1.44%) removed.
Following shows the average MPG of each of the 180 vehicles in the system.
2018 GMC Sierra 1500s For Sale Nearby
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Jimmy
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jan 2018 • 170 Fuel-upsProperty of cowpen
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19.1 Avg MPG
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Rich's Truck
2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Jul 2019 • 107 Fuel-upsProperty of rcorning
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18.1 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
Added Mar 2018 • 173 Fuel-upsProperty of chilly0999
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15.5 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jun 2022 • 75 Fuel-upsProperty of sierradenali6-2
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13.9 Avg MPG
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Big Red Eskimo
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Nov 2021 • 139 Fuel-upsProperty of rkfdwc1
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15.3 Avg MPG
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2018GMC SIERRA 4X4
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Feb 2020 • 73 Fuel-upsProperty of jjz3
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18.9 Avg MPG
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2018 GMC Sierra
2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Oct 2018 • 165 Fuel-upsProperty of bgrinder90
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14.1 Avg MPG
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Denali
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jan 2018 • 321 Fuel-upsProperty of Godofwine7
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16.0 Avg MPG
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2018 GMC Sierra
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
Added May 2018 • 358 Fuel-upsProperty of joenrox
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16.6 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Dec 2018 • 232 Fuel-upsProperty of e37292
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16.9 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Jan 2020 • 114 Fuel-upsProperty of retiredcb
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18.9 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Sep 2018 • 118 Fuel-upsProperty of rinman
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15.0 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added May 2018 • 165 Fuel-upsProperty of wmdahler
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17.2 Avg MPG
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GMC Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Jun 2018 • 256 Fuel-upsProperty of Buckshot48
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17.7 Avg MPG
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2018 Sierra
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Nov 2018 • 201 Fuel-upsProperty of gerickson24
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14.0 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Apr 2018 • 181 Fuel-upsProperty of rleitht
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15.1 Avg MPG
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Rooster
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Mar 2019 • 100 Fuel-upsProperty of x62605
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17.4 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Oct 2019 • 231 Fuel-upsProperty of iNative
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15.6 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Sep 2018 • 281 Fuel-upsProperty of Polar800
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14.2 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
Added Oct 2022 • 137 Fuel-upsProperty of Mstc
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15.7 Avg MPG