2022 GMC Sierra

Truck Diesel
GMC Sierra 2022
26MPG Combined
21 Trims
← 2021 2022 2023 →
Updated February 27, 2026

The 2022 GMC Sierra is a Truck that delivers 16–26 combined MPG depending on trim. Here’s everything you need to know about this diesel-powered vehicle, from fuel economy to safety ratings.

2022 GMC Sierra Specifications

SpecValue
Combined MPG16–26 combined MPG depending on trim
City MPG23
Highway MPG30
Body StyleTruck
Fuel TypeDiesel
DriveRWD
Available Trims21

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto23/30/263.0L 6cylAutomatic 10-spd
Auto15/19/165.3L 8cylAutomatic 6-spd
Sport16/21/185.3L 8cylAutomatic 8-spd
Auto19/22/202.7L 4cylAutomatic 8-spd
Sport19/22/202.7L 4cylAutomatic 8-spd
Auto16/21/185.3L 8cylAutomatic 8-spd
Auto16/21/185.3L 8cylAutomatic 10-spd
Sport16/21/185.3L 8cylAutomatic 10-spd
Auto22/26/243.0L 6cylAutomatic 10-spd
Auto15/19/165.3L 8cylAutomatic 10-spd
Auto14/18/165.3L 8cylAutomatic 6-spd
Sport15/20/175.3L 8cylAutomatic 8-spd
Auto15/20/175.3L 8cylAutomatic 8-spd
Auto14/19/166.2L 8cylAutomatic 10-spd
Auto15/20/176.2L 8cylAutomatic 10-spd
Auto17/20/182.7L 4cylAutomatic 8-spd
Sport17/20/182.7L 4cylAutomatic 8-spd
Auto15/19/175.3L 8cylAutomatic 10-spd
Sport14/19/165.3L 8cylAutomatic 10-spd
Auto14/19/165.3L 8cylAutomatic 10-spd
Auto16/20/175.3L 8cylAutomatic 10-spd

Annual Fuel Cost

Based on EPA estimates, the 2022 GMC Sierra costs approximately $2,607 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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