26 MPG combined might not be record-breaking, but for a full-size, light-duty pickup truck like the 2022 GMC Sierra 2WD with the 3.0L Duramax diesel, it’s a legitimately impressive figure. This isn’t a hybrid pretending to be a truck, it’s a work-ready machine that can tow, haul, and function as a daily driver, all while using fuel efficiently. The target audience here understands the compromises of owning a truck, but they also appreciate efficiency. This Sierra configuration offers just that: capability without completely emptying your wallet at the pump.

City and highway performance

The EPA estimates of 23 MPG in the city and a particularly strong 30 MPG on the highway highlight the 3.0L Duramax’s strengths. The city number is respectable for a vehicle of this size. This Sierra really shines on the open road. The diesel engine’s torque delivery and the smooth-shifting 10-speed automatic transmission work together to keep the engine in its optimal efficiency range at highway speeds. This allows owners who regularly commute or take long road trips to see truly impressive MPG figures, further offsetting the higher initial cost of the diesel powertrain.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2022 GMC Sierra 2WD 3.0L diesel is $2,150. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Of course, individual fuel costs will vary depending on driving habits and location. Prices fluctuate, and aggressive driving reduces fuel economy. This figure provides a benchmark for potential buyers to understand the expected cost of ownership over the course of a year.

Real-world expectations

While the EPA provides a useful baseline, real-world MPG will always vary. Factors like driving style, load, terrain, and even tire pressure can affect fuel economy. Drivers who frequently tow or haul heavy loads will see a significant drop in MPG. Similarly, those who spend a lot of time in stop-and-go traffic should anticipate lower city MPG than the EPA estimate. However, drivers who prioritize smooth acceleration, consistent speeds, and regular maintenance stand a good chance of meeting or even exceeding the EPA numbers, particularly on the highway.

How it compares

The 2022 GMC Sierra 2WD’s 3.0L Duramax shines against its competitors. When comparing it to the 2022 Ford F-150 with the 2.7L EcoBoost V6 (around 22 MPG combined) or the Ram 1500 with the 5.7L Hemi V8 (closer to 19 MPG combined), the Sierra’s diesel powertrain offers an advantage in fuel efficiency. Even the F-150’s PowerBoost hybrid, though potentially offering better city MPG, doesn’t consistently beat the Sierra’s highway numbers in real-world driving and is more costly. These differences matter to buyers who are putting serious miles on there trucks because longer range and decreased fuel costs can influence their ownership experience. See all Gmc fuel economy data to compare.

Tips to maximize efficiency

Optimize your driving style to maximize fuel economy. The 3.0L Duramax generates ample torque at low RPMs, so accelerate gently and avoid unnecessary hard acceleration. Anticipate traffic flow and maintain a consistent speed whenever possible. Less stop-and-go driving will improve your city MPG.

Pay attention to tire pressure. Check your tire pressure regularly and ensure that it matches the specification on the doorjamb sticker. Underinflated tires increase rolling resistance, which reduces fuel economy. Properly inflated tires also improve handling and extend tire life.

Reduce unnecessary weight. Avoid carrying unnecessary items in the bed of the truck or in the cab. Extra weight puts additional strain on the engine, resulting in less gas. Remove any items that aren’t essential for your daily driving needs. Consider reviewing SIERRA MPG across all years to get an idea of typical fuel economies.

Maintain your vehicle according to the recommended service schedule. Regular oil changes, air filter replacements, and other maintenance tasks help keep your engine running efficiently. A well-maintained engine will deliver optimal fuel economy and performance. Skipping maintenance can lead to decreased efficiency and potentially costly repairs.

Use cruise control on the highway. Cruise control helps maintain a constant speed, minimizing variations in throttle input. This translates to more consistent fuel consumption, especially on long highway drives. Just remember to disengage cruise control when entering areas of changing traffic conditions.