2018 GMC Sierra 1500 MPG
Based on data from 164 vehicles, 9,319 fuel-ups and 2,685,993 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 16.28 with a 0.06 MPG margin of error.
Below you can see a distribution of the fuel-ups with 347 outliers (3.59%) removed.
Following shows the average MPG of each of the 164 vehicles in the system.
2018 GMC Sierra 1500s For Sale Nearby
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My New Toy
2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Jan 2019 • 51 Fuel-upsProperty of widebody
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16.4 Avg MPG
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Black Betty
2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
Added Dec 2018 • 93 Fuel-upsProperty of tlawson85
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17.6 Avg MPG
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Glenn
2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Nov 2020 • 44 Fuel-upsProperty of ghcrawford
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14.6 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Oct 2019 • 69 Fuel-upsProperty of iNative
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15.8 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Dec 2020 • 27 Fuel-upsProperty of ianspecs
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13.7 Avg MPG
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2018 Sierra 1500
2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Cab & Chassis - Crew Cab
Added Apr 2018 • 183 Fuel-upsProperty of iZoomie
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17.8 Avg MPG
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2018 GMC Sierra
2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Oct 2018 • 83 Fuel-upsProperty of bgrinder90
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13.8 Avg MPG
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Sierra
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Oct 2019 • 176 Fuel-upsProperty of hubbd33
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14.3 Avg MPG
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2018 Sierra
2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Feb 2019 • 102 Fuel-upsProperty of trentm
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15.3 Avg MPG
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2018 Sierra
2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed Crew Cab Pickup
Added Jan 2019 • 215 Fuel-upsProperty of civicsiracer06
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14.9 Avg MPG
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GMC
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Dec 2018 • 302 Fuel-upsProperty of Tigers20
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18.1 Avg MPG
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2018 GMC Sierra
2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Mar 2018 • 166 Fuel-upsProperty of Existant69
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13.1 Avg MPG
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GMC Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 8 Speed
Added Jun 2018 • 134 Fuel-upsProperty of Buckshot48
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17.6 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jan 2019 • 151 Fuel-upsProperty of Chad08
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15.7 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 8 Speed
Added Nov 2018 • 93 Fuel-upsProperty of epedro40
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16.6 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Jan 2018 • 83 Fuel-upsProperty of nmason42
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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 Nov 2018 • 85 Fuel-upsProperty of emejay
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19.4 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 • 198 Fuel-upsProperty of joenrox
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16.9 Avg MPG
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My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Dec 2018 • 127 Fuel-upsProperty of e37292
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16.8 Avg MPG
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Denali
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jan 2020 • 30 Fuel-upsProperty of Teutonics
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17.5 Avg MPG