2018 GMC Sierra 1500 MPG
Based on data from 186 vehicles, 16,344 fuel-ups and 4,616,610 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 236 outliers (1.42%) removed.
Following shows the average MPG of each of the 186 vehicles in the system.
2018 GMC Sierra 1500s For Sale Nearby
-
My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Jun 2019 • 54 Fuel-upsProperty of mbrent77
-
18.5 Avg MPG
-
2018 GMC
2018 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
Added Mar 2018 • 133 Fuel-upsProperty of MurphyD
-
19.1 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Dec 2017 • 148 Fuel-upsProperty of Hacjr1949
-
18.4 Avg MPG
-
GMC Truck
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Extended Cab Pickup
Added Mar 2019 • 85 Fuel-upsProperty of JOlson
-
14.4 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 ELECTRIC/GAS Automatic 6 Speed
Added Mar 2019 • 76 Fuel-upsProperty of Tommyboy1
-
17.5 Avg MPG
-
Noel
2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed
Added Jan 2019 • 34 Fuel-upsProperty of mkcollimsworth
-
17.8 Avg MPG
-
2018 GMC Sierra 1500 SLT
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Jul 2018 • 75 Fuel-upsProperty of blkcheech
-
16.9 Avg MPG
-
Little Red
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added Nov 2018 • 64 Fuel-upsProperty of llljrmd
-
16.8 Avg MPG
-
2018 GMC Sierra
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Dec 2018 • 122 Fuel-upsProperty of wdclark
-
18.8 Avg MPG
-
Sierra 1500
2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed
Added Jul 2020 • 8 Fuel-upsProperty of riahkane
-
15.2 Avg MPG
-
2018 Denali
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Nov 2017 • 90 Fuel-upsProperty of bae1161
-
17.2 Avg MPG
-
2018 Sierra 1500 SLT
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Mar 2018 • 175 Fuel-upsProperty of RickGMC
-
16.7 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Sep 2019 • 5 Fuel-upsProperty of green02crew
-
12.9 Avg MPG
-
Sierra Denali
2018 GMC Sierra 1500 Denali 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Sep 2019 • 8 Fuel-upsProperty of PBU02
-
23.5 Avg MPG
-
Sierra 1500
2018 GMC Sierra 1500 SLE 4.3L V6 FLEX Automatic 6 Speed
Added Jan 2019 • 17 Fuel-upsProperty of Ratater
-
15.5 Avg MPG
-
Smokey
2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Oct 2018 • 37 Fuel-upsProperty of isobellacuan
-
16.9 Avg MPG
-
Thomas
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed Crew Cab Pickup
Added Nov 2018 • 20 Fuel-upsProperty of tomprzy
-
18.1 Avg MPG
-
Sierra
2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Sep 2018 • 24 Fuel-upsProperty of pilule
-
17.6 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Jul 2018 • 20 Fuel-upsProperty of flopper666
-
31.9 Avg MPG
-
2018 Sierra 1500, 6.2, 3.23
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Jul 2018 • 33 Fuel-upsProperty of onecooljoe70
-
14.2 Avg MPG