2015 GMC Sierra 1500 MPG
Based on data from 220 vehicles, 24,343 fuel-ups and 7,041,332 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.69 with a 0.04 MPG margin of error.
Below you can see a distribution of the fuel-ups with 743 outliers (2.96%) removed.
Following shows the average MPG of each of the 220 vehicles in the system.
2015 GMC Sierra 1500s For Sale Nearby
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Sierra 1500 Denali
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 6 Speed
Added Apr 2018 • 250 Fuel-upsProperty of reety82
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16.8 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Feb 2019 • 88 Fuel-upsProperty of Christofo
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15.8 Avg MPG
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2015 GMC Sierra
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2020 • 28 Fuel-upsProperty of frontrunner76
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18.4 Avg MPG
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GMC Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Sep 2019 • 51 Fuel-upsProperty of Gears_Gadgets
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14.5 Avg MPG
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'15 GMC
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Oct 2017 • 262 Fuel-upsProperty of 2kwik4u
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16.0 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Sep 2017 • 177 Fuel-upsProperty of tystebbins
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13.8 Avg MPG
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X My Sierra 1500
2015 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
Added Aug 2019 • 17 Fuel-upsProperty of JTD-3SV
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14.9 Avg MPG
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GMC Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Extended Cab Pickup
Added Feb 2019 • 102 Fuel-upsProperty of Grizzy
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17.1 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 4.3L V6 FLEX Automatic 6 Speed
Added Jan 2020 • 31 Fuel-upsProperty of MJewell
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16.7 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Jun 2018 • 143 Fuel-upsProperty of cust0mbuild
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11.8 Avg MPG
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Mad Max
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Sep 2019 • 41 Fuel-upsProperty of gmzdad
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16.5 Avg MPG
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Z
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Aug 2019 • 33 Fuel-upsProperty of dex10
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14.9 Avg MPG
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Onyx
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Aug 2015 • 296 Fuel-upsProperty of 92teg92
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14.2 Avg MPG
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2015 GMC
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Sep 2016 • 271 Fuel-upsProperty of crpntrmstr
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14.7 Avg MPG
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2015 Sierra 1500
2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 6 Speed
Added May 2018 • 66 Fuel-upsProperty of gksills
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17.0 Avg MPG
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Sierra Denali 2015
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 6 Speed
Added Jun 2018 • 121 Fuel-upsProperty of ivertiz
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15.9 Avg MPG
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Sierra
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Feb 2015 • 161 Fuel-upsProperty of natterbe
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18.5 Avg MPG
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2015 GMC Sierra
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Apr 2015 • 104 Fuel-upsProperty of chevyryan
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17.3 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 6 Speed
Added Aug 2019 • 22 Fuel-upsProperty of trackingwild
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16.0 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 5.3L V8 FLEX Automatic 6 Speed
Added Feb 2020 • 4 Fuel-upsProperty of mcs1960
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14.1 Avg MPG