22 MPG combined isn’t going to win any efficiency awards, but for the 2021 GMC Canyon 4WD with the 2.8L Duramax diesel, it’s a perfectly acceptable figure. This isn’t a Prius; it’s a small truck designed for work and weekend adventures. Anyone considering this specific Canyon configuration understands that all-terrain tires, a heavier four-wheel-drive system, and the inherent weight of a pickup bed will impact fuel consumption. The buyer of this truck prioritizes capability and durability over outright thriftiness at the pump.

City and highway performance

The EPA estimates of 19 MPG in the city and 28 MPG on the highway give a clearer picture of where this Canyon performs best. The city figure reflects the stop-and-go driving and idling common in urban environments, conditions that can tax diesel engines slightly more than gasoline ones.

The highway figure is where the 2.8L Duramax shines. Its ample low-end torque allows it to cruise comfortably at highway speeds without straining, resulting in respectable fuel economy for a truck that can still tow over 7,000 pounds. The 6-speed automatic transmission is well-matched to the engine’s powerband, further contributing to efficient highway driving.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2021 GMC Canyon 4WD 2.8L diesel is $2,550. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs may vary depending on your driving habits, fuel prices in your area, and the specific conditions in which you operate the truck. Hauling heavy loads frequently or spending a lot of time in four-wheel drive will certainly drive that number higher.

It’s a good idea to track your own fuel consumption for a more accurate picture of your personal running costs.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy often differs. Many owners report achieving numbers close to the EPA estimates, especially on longer highway trips. However, factors like aggressive driving, aftermarket modifications (such as larger tires or lift kits), and cold weather can all negatively impact fuel consumption. Expect to see the MPG dip in winter months, as diesel engines require more fuel to start and operate efficiently in cold temperatures. Maintaining proper tire inflation and adhering to the recommended service schedule are critical for achieving optimal fuel economy. Check CANYON MPG across all years information, and you’ll see this drivetrain behaves similarly to previous models.

How it compares

The Canyon’s diesel fuel economy places it in a unique position within the mid-size truck segment. The Toyota Tacoma, with its 3.5L V6, typically averages around 20 MPG combined in 4×4 configurations. The gasoline-powered Chevrolet Colorado, mechanically similar to the Canyon, achieves similar numbers. The now-discontinued Honda Ridgeline, with its V6 and unibody construction, aimed for better fuel economy, achieving around 21 MPG combined, but sacrificed some off-road capability in the process. The Jeep Gladiator, known for its off-road prowess and removable top, comes in around 19 MPG combined with its standard V6. These buyers are prioritizing different attributes.

The Tacoma buyer wants reliability, the Ridgeline buyer wants comfort, the Gladiator buyer wants open-air fun, while the Canyon diesel buyer is actively seeking the combination of torque, towing capacity, and relative fuel efficiency unique to the diesel engine. To get a clearer picture of other GMC models, see all Gmc fuel economy data.

Tips to maximize efficiency

Avoid excessive idling. Diesel engines consume a noticeable amount of fuel when idling, even compared to gasoline engines. If you anticipate being stationary for more than a minute, it’s generally more efficient to turn the engine off and restart it when you’re ready to go.

Use cruise control on the highway. Maintaining a consistent speed helps to optimize fuel consumption. The Canyon’s cruise control system can adapt to changes in terrain, helping to keep your speed steady and your fuel economy high. Avoid aggressive acceleration and hard braking whenever possible.

Keep your tires properly inflated. Check your tire pressure regularly and inflate them to the recommended pressure listed on the doorjamb sticker. Underinflated tires increase rolling resistance, which reduces fuel economy and can also lead to premature tire wear. Consider using a tire pressure monitoring system (TPMS) for added convenience.

Minimize aerodynamic drag. Remove any unnecessary roof racks or cargo carriers when they’re not in use. These accessories can significantly increase aerodynamic drag, especially at highway speeds, leading to a noticeable drop in fuel economy. Ensure that your truck bed is covered or empty when possible.

Use the correct diesel fuel and additives. Always use fuel that meets the manufacturer’s specifications. In cold climates, consider using a fuel additive to prevent fuel gelling, which can negatively impact engine performance and fuel economy.