2018 GMC Sierra 2500 HD MPG
Based on data from 59 vehicles, 4,400 fuel-ups and 1,673,672 miles of driving, the 2018 GMC Sierra 2500 HD gets a combined Avg MPG of 14.56 with a 0.11 MPG margin of error.
Below you can see a distribution of the fuel-ups with 69 outliers (1.54%) removed.
Following shows the average MPG of each of the 59 vehicles in the system.
2018 GMC Sierra 2500 HDs For Sale Nearby
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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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My Sierra 2500 HD
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Nov 2018 • 148 Fuel-upsProperty of cfort
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14.5 Avg MPG
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Denali
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Dec 2017 • 262 Fuel-upsProperty of jlawles2
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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 Sep 2017 • 193 Fuel-upsProperty of tstanley2128
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15.9 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 • 233 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 SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Jun 2018 • 94 Fuel-upsProperty of Boerklong
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16.2 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jan 2023 • 4 Fuel-upsProperty of pcurran63
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14.9 Avg MPG
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Ken’s
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Apr 2020 • 47 Fuel-upsProperty of Cave0369
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16.6 Avg MPG
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Denali HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Sep 2022 • 5 Fuel-upsProperty of EasyRhino
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18.0 Avg MPG
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GMC Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Feb 2021 • 25 Fuel-upsProperty of Krixus
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12.7 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 • 9 Fuel-upsProperty of williamsm5813
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13.1 Avg MPG
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2018 Duramax
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Dec 2018 • 45 Fuel-upsProperty of brbrb
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15.5 Avg MPG
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Ghost
2018 GMC Sierra 2500 HD SLE 6.6L V8 DIESEL Automatic 6 Speed Crew Cab Pickup
Added Apr 2018 • 221 Fuel-upsProperty of cowdoc
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18.8 Avg MPG
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2018 GMC Sierra Denali HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Dec 2017 • 63 Fuel-upsProperty of Screagle
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17.0 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added May 2020 • 50 Fuel-upsProperty of tishma09
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10.3 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 2018 • 13 Fuel-upsProperty of Jdcompman
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15.4 Avg MPG
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2018 Sierra Denali HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Jan 2018 • 120 Fuel-upsProperty of LynnE24
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15.0 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD Denali 6.6L V8 DIESEL Automatic 6 Speed
Added Feb 2020 • 72 Fuel-upsProperty of yelruc2
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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 Jun 2020 • 5 Fuel-upsProperty of Madodds
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15.2 Avg MPG
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My Sierra 2500 HD
2018 GMC Sierra 2500 HD SLT 6.6L V8 DIESEL Automatic 6 Speed
Added Jul 2018 • 96 Fuel-upsProperty of DocSavage1960
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12.9 Avg MPG