2021 GMC Sierra MPG

Based on data from 1 vehicles, 17 fuel-ups and 6,018 miles of driving, the 2021 GMC Sierra gets a combined Avg MPG of 18.57 with a 0.98 MPG margin of error.

Below you can see a distribution of the fuel-ups with 1 outliers (5.56%) removed.

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2021 GMC Sierra AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Jul 2024 • 35 Fuel-ups

Property of joedogg
18.6 Avg MPG

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from other GMC Sierra vehicles (View All)

cmwelu fueled-up their 2022 GMC Sierra. Last Tank: 16.1 MPG 1 day ago
Jellema had 1 best tank(s) for their 2022 GMC Sierra. Last Tank: 66.8 MPG 1 day ago
sander025 added 1 notes for their 2022 GMC Sierra. 1 day ago
Cruzenblue added 1 notes for their 2022 GMC Sierra. 2 days ago
tooshort618 added 1 notes for their 2012 GMC Sierra. 2 days ago
TDI13 fueled-up their 2022 GMC Sierra. Last Tank: 25.5 MPG 3 days ago
Lisa_Robert added 1 notes for their 2014 GMC Sierra. 5 days ago

Tips

To Save on Gas

Nitro-fill your tires.... use synthetic like Royal Purple pr... ...

by stu

2021 GMC Sierra MPG

2021 GMC Sierras For Sale Nearby

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