2021 GMC Sierra MPG

Based on data from 1 vehicles, 27 fuel-ups and 9,404 miles of driving, the 2021 GMC Sierra gets a combined Avg MPG of 18.19 with a 0.95 MPG margin of error.

Below you can see a distribution of the fuel-ups with 1 outliers (3.57%) removed.

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2021 GMC Sierra AT4 5.3L V8 GAS Automatic 10 Speed Crew Cab Pickup
Added Jul 2024 • 52 Fuel-ups

Property of joedogg
18.7 Avg MPG

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from other GMC Sierra vehicles (View All)

Ed753 fueled-up their 2022 GMC Sierra. Last Tank: 15.2 MPG 9 hours ago
cmwelu fueled-up their 2022 GMC Sierra. Last Tank: 12.8 MPG 1 day ago
TDI13 fueled-up their 2022 GMC Sierra. Last Tank: 22.2 MPG 2 days ago
jbarclay12 added 1 notes for their 2022 GMC Sierra. 3 days ago
dhulsty added 5 fuel-ups to their 2022 GMC Sierra. 4 days ago
urbs76 fueled-up their 2022 GMC Sierra. Last Tank: 27.2 MPG 5 days ago
RADGAS added 1 notes for their 2022 GMC Sierra. 1 week ago

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Select The Right Drive Mode

Many of today's modern vehicles have multiple driving "modes... ...

by SteveMak

2021 GMC Sierra MPG

2021 GMC Sierras For Sale Nearby

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