2018 GMC Sierra 1500 MPG
Based on data from 193 vehicles, 17,926 fuel-ups and 5,067,207 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 246 outliers (1.35%) removed.
Following shows the average MPG of each of the 193 vehicles in the system.
2018 GMC Sierra 1500s For Sale Nearby
-
GMC 18
2018 GMC Sierra 1500 SLE 5.3L V8 FLEX Automatic 6 Speed Crew Cab Pickup
Added Apr 2018 • 4 Fuel-upsProperty of Beef56
-
21.2 Avg MPG
-
Sierra ‘18
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Dec 2017 • 26 Fuel-upsProperty of karldv
-
13.4 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed
Added May 2018 • 11 Fuel-upsProperty of dbierman
-
17.5 Avg MPG
-
Dad's Truck
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Jul 2018 • 10 Fuel-upsProperty of Jake57
-
13.4 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 8 Speed Crew Cab Pickup
Added Mar 2018 • 14 Fuel-upsProperty of bass685
-
15.9 Avg MPG
-
2018 Sierra
2018 GMC Sierra 1500 5.3L V8 GAS Automatic 6 Speed Extended Cab Pickup
Added Mar 2018 • 5 Fuel-upsProperty of handovdoom
-
16.4 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Jan 2018 • 25 Fuel-upsProperty of mikepru
-
16.8 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 6.2L V8 GAS Automatic 8 Speed
Added Jan 2018 • 27 Fuel-upsProperty of brettsinyard
-
14.0 Avg MPG
-
BKMX120
2018 GMC Sierra 1500 SLE 5.3L V8 GAS Automatic 6 Speed
Added Jan 2018 • 13 Fuel-upsProperty of bkeating
-
15.9 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 Denali 5.3L V8 FLEX Automatic 8 Speed
Added Mar 2018 • 5 Fuel-upsProperty of hornedfrog05
-
18.5 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 SLT 5.3L V8 GAS Automatic 6 Speed
Added Feb 2018 • 3 Fuel-upsProperty of dail0054
-
11.6 Avg MPG
-
Sierra
2018 GMC Sierra 1500 SLT 5.3L V8 FLEX Automatic 6 Speed
Added Jul 2021 • 122 Fuel-upsProperty of Bigtrucker53
-
17.4 Avg MPG
-
My Sierra 1500
2018 GMC Sierra 1500 Denali 6.2L V8 GAS Automatic 8 Speed
Added Oct 2017 • 5 Fuel-upsProperty of cburley
-
16.9 Avg MPG