2018 GMC Sierra 1500 MPG
Based on data from 186 vehicles, 16,489 fuel-ups and 4,655,727 miles of driving, the 2018 GMC Sierra 1500 gets a combined Avg MPG of 15.97 with a 0.05 MPG margin of error.
Below you can see a distribution of the fuel-ups with 239 outliers (1.43%) removed.
Following shows the average MPG of each of the 186 vehicles in the system.
2018 GMC Sierra 1500s For Sale Nearby
-
GMC 1500 4x4
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Feb 2018 • 197 Fuel-upsProperty of kiscl
-
14.7 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Sep 2018 • 125 Fuel-upsProperty of rinman
-
15.1 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Dec 2018 • 261 Fuel-upsProperty of e37292
-
17.0 Avg MPG
-
Denali
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Oct 2021 • 76 Fuel-upsProperty of Philly9277
-
15.2 Avg MPG
-
GMC Sierra 1500 SLT
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jul 2018 • 49 Fuel-upsProperty of Dirtpig
-
17.6 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jun 2022 • 88 Fuel-upsProperty of sierradenali6-2
-
13.3 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Feb 2019 • 166 Fuel-upsProperty of mskalak
-
15.0 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Sep 2022 • 56 Fuel-upsProperty of jasonellington
-
16.8 Avg MPG
-
2018 Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
Added Oct 2021 • 59 Fuel-upsProperty of gksills
-
18.3 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Mar 2022 • 95 Fuel-upsProperty of nvolz
-
16.6 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Nov 2022 • 18 Fuel-upsProperty of rosco1618
-
18.2 Avg MPG
-
Sierra 1500
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Mar 2018 • 151 Fuel-upsProperty of lordsporkton
-
14.8 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Mar 2021 • 37 Fuel-upsProperty of DarkLordScott
-
16.5 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Apr 2022 • 12 Fuel-upsProperty of bl9893
-
19.2 Avg MPG
-
2018 GMC Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Jan 2019 • 180 Fuel-upsProperty of pmhayden
-
17.1 Avg MPG
-
"The Legacy" 2018 GMC Sierra SLT
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Sep 2018 • 79 Fuel-upsProperty of Ed753
-
16.5 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 Denali 5.3L V8 FLEX Automatic 8 Speed
Added Feb 2019 • 133 Fuel-upsProperty of mpgapp
-
14.4 Avg MPG
-
2018 Sierra Denali
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Oct 2020 • 35 Fuel-upsProperty of Tiger_993
-
18.2 Avg MPG
-
Sierra Red
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Feb 2019 • 133 Fuel-upsProperty of Snafujg
-
16.1 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Jun 2018 • 91 Fuel-upsProperty of yt_4real
-
13.9 Avg MPG