Owners of the 2022 GMC Sierra 4WD with the 5.3L V8 get 16 MPG combined. To be clear, most people don’t buy this truck for fuel efficiency. This Sierra configuration suits individuals who need a capable workhorse for towing, hauling, and challenging terrain. Fuel economy is a secondary concern, outweighed by the proven performance and reliability of a V8-powered, four-wheel-drive pickup.

City and highway performance

EPA estimates show 15 MPG in the city and 19 MPG on the highway. The city figure reflects urban driving’s stop-and-go nature, where the Sierra’s weight and large engine increase fuel consumption. Highway driving, with more consistent speeds, lets the 5.3L V8 operate more efficiently, nearing 20 MPG. The 10-speed automatic transmission helps optimize engine performance for different driving conditions but can’t overcome the inherent thirst of a full-size truck with a powerful V8.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 GMC Sierra 4WD 5.3L 8-cyl at $2,750. This is based on driving 15,000 miles per year, the EPA’s combined MPG, and the national average fuel price for regular gasoline. Your actual fuel costs may differ based on driving habits, local fuel prices, and miles driven each year, but this is a reasonable estimate for budgeting.

Real-world expectations

While the EPA estimates offer a useful reference, real-world fuel economy varies. Drivers who frequently tow or haul heavy loads will likely see lower MPG than the EPA estimates. Aggressive driving, including rapid acceleration and hard braking, will also hurt fuel efficiency. However, drivers who prioritize smooth acceleration and maintain consistent speeds may achieve fuel economy closer to, or even slightly better than, the EPA estimates. Weather, tire pressure, and fuel type can influence your MPG.

How it compares

The Chevrolet Silverado, sharing a platform and powertrain with the Sierra, offers nearly identical fuel economy in its 4WD 5.3L V8 configuration. Ford’s F-150 with its 4WD 5.0L V8 gets similar numbers in equivalent trims, around 16-17 MPG combined. The Toyota Tundra, while known for reliability, lags in fuel efficiency with its V8 models, typically netting around 15 MPG combined in 4WD configurations. The Ford F-150 Hybrid offers a considerably better 25 MPG combined but may not suit owners seeking a V8’s power and sound. The availability of all GMC fuel economy data lets one easily compare the Sierra to alternatives. Before committing, explore SIERRA MPG across all years to observe long-term trends.

Tips to maximize efficiency

Practice smooth acceleration and braking. Avoid aggressive driving habits, like stomping on the gas pedal or slamming on the brakes. Gradual acceleration and anticipating traffic can improve fuel economy, especially in city driving. This applies to all vehicles, but the Sierra’s weight amplifies the impact of inefficient driving habits.

Maintain proper tire inflation. Check your tire pressure regularly and inflate your tires to the recommended pressure listed on the sticker inside your driver’s side door. Underinflated tires increase rolling resistance, reducing fuel efficiency. A simple tire pressure gauge is a worthwhile investment, and a quick check every few weeks can make a difference.

Reduce unnecessary weight. Remove any unnecessary items from the truck bed and interior. The heavier the vehicle, the more fuel it will consume. While the Sierra is designed for hauling, carrying around extra weight when it’s not needed wastes fuel.

Consider using cruise control on the highway. Maintaining a consistent speed on the highway can help improve fuel economy. Cruise control can help you avoid unintentional speed fluctuations, which can waste fuel. Be mindful of traffic and disengage cruise control when needed.

Minimize idling. Avoid idling the engine for extended periods. If you’re waiting for someone or stopped for more than a minute, turn off the engine. Excessive idling consumes fuel and contributes to emissions. Modern vehicles don’t require extended warm-up periods, so starting the engine only when you’re ready to drive can save fuel.