2015 GMC Sierra 1500 MPG
Based on data from 215 vehicles, 22,982 fuel-ups and 6,661,240 miles of driving, the 2015 GMC Sierra 1500 gets a combined Avg MPG of 15.71 with a 0.04 MPG margin of error.
Below you can see a distribution of the fuel-ups with 718 outliers (3.03%) removed.
Following shows the average MPG of each of the 215 vehicles in the system.
2015 GMC Sierra 1500s For Sale Nearby
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GMC Sierra
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Feb 2015 • 263 Fuel-upsProperty of glangham
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17.5 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Mar 2024 • 100 Fuel-upsProperty of Strandman76
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15.0 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Mar 2024 • 100 Fuel-upsProperty of Strandman76
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15.0 Avg MPG
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Truck
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Oct 2018 • 202 Fuel-upsProperty of kbreyette
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15.2 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Nov 2022 • 18 Fuel-upsProperty of jdonoho
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15.6 Avg MPG
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Little Blue
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Mar 2022 • 42 Fuel-upsProperty of psm11911
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17.0 Avg MPG
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Denali
2015 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jun 2019 • 126 Fuel-upsProperty of Gmguy426
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8.4 Avg MPG
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SIERRA
2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
Added May 2022 • 58 Fuel-upsProperty of steven540i
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17.3 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Feb 2022 • 56 Fuel-upsProperty of amumcgann
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18.1 Avg MPG
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SIERRA
2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Extended Cab Pickup
Added Jun 2020 • 58 Fuel-upsProperty of steven540i
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17.3 Avg MPG
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2015 GMC SIERRA CREW CAB TOWING
2015 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jun 2015 • 58 Fuel-upsProperty of Freeweeling
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14.1 Avg MPG
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Sierra
2015 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed
Added Mar 2017 • 291 Fuel-upsProperty of dgrule
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16.4 Avg MPG
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My Sierra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Jun 2022 • 7 Fuel-upsProperty of abby1127
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17.9 Avg MPG
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GMC Sierra 1500
2015 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Jul 2020 • 23 Fuel-upsProperty of KeeBlitz
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18.7 Avg MPG
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'15 GMC Seirra 1500
2015 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Jul 2019 • 64 Fuel-upsProperty of danny_coggins
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15.7 Avg MPG
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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