2018 GMC Sierra 2500 HD MPG
Based on data from 53 vehicles, 2,810 fuel-ups and 1,134,613 miles of driving, the 2018 GMC Sierra 2500 HD gets a combined Avg MPG of 15.06 with a 0.13 MPG margin of error.
Below you can see a distribution of the fuel-ups with 35 outliers (1.23%) removed.
Following shows the average MPG of each of the 53 vehicles in the system.
2018 GMC Sierra 2500 HDs For Sale Nearby
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Apr 2019 • 108 Fuel-upsProperty of 4gkids
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14.4 Avg MPG
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2018 Sierra Denali HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jun 2018 • 137 Fuel-upsProperty of xstaski
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15.2 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Feb 2021 • 11 Fuel-upsProperty of long003
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16.5 Avg MPG
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Sierra 2500 HD
2018 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
Added May 2019 • 61 Fuel-upsProperty of larboy
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12.0 Avg MPG
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GMC Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jul 2018 • 191 Fuel-upsProperty of LouLee
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15.6 Avg MPG
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Sierra Denali 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Mar 2019 • 64 Fuel-upsProperty of west27
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13.7 Avg MPG
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Denali HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jan 2018 • 61 Fuel-upsProperty of Mavis500
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15.1 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Nov 2018 • 72 Fuel-upsProperty of cfort
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14.5 Avg MPG
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Denali HD
2018 GMC Sierra 2500 HD Denali 6.0L V8 FLEX Automatic 6 Speed
Added Jun 2020 • 42 Fuel-upsProperty of Sullivan907
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13.2 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added May 2018 • 148 Fuel-upsProperty of jtw811
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14.7 Avg MPG
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Ken’s
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Apr 2020 • 21 Fuel-upsProperty of Cave0369
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15.6 Avg MPG
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Denali
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Nov 2017 • 163 Fuel-upsProperty of superflymtber
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17.4 Avg MPG
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18 Sierra
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Jul 2018 • 154 Fuel-upsProperty of texags06
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14.6 Avg MPG
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GMC
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Feb 2021 • 7 Fuel-upsProperty of csundell
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12.0 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD SLT 6.0L V8 FLEX Automatic 6 Speed
Added Feb 2021 • 5 Fuel-upsProperty of williamsm5813
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13.8 Avg MPG
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Sierra 2500
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Nov 2018 • 162 Fuel-upsProperty of IPAGuy
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12.3 Avg MPG
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Red Tank 15/40
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Feb 2018 • 39 Fuel-upsProperty of jdelfin
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15.0 Avg MPG
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2018 Duramax
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Extended Cab Pickup
Added Nov 2017 • 58 Fuel-upsProperty of Rocketrollinsx
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14.4 Avg MPG
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GMC Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Feb 2021 • 4 Fuel-upsProperty of Krixus
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13.0 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Sep 2017 • 142 Fuel-upsProperty of tstanley2128
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16.2 Avg MPG