The 2019 GMC Canyon 2WD 2.8L 4-cylinder Duramax diesel gets 23 MPG combined, which is a practical choice for buyers who need truck capability without the high fuel consumption of a full-size pickup. This figure reflects the Canyon’s purpose: providing real utility in a smaller, more manageable size, focused more on workday tasks than weekend show. The Canyon diesel appeals to a very specific kind of buyer, someone who regularly tows smaller loads, appreciates the low-end power of a diesel, and wants good fuel efficiency instead of outright speed. They understand a diesel engine and are willing to accept its quirks for the improved mileage, especially when hauling.

City and highway performance

The Canyon 2WD diesel’s EPA ratings break down to 20 MPG in the city and a more impressive 30 MPG on the highway. The city figure reflects the usual diesel issue in stop-and-go traffic, where the engine’s weight and higher internal friction matter. The highway MPG, however, is where this truck excels. The 2.8L Duramax’s high torque at low RPMs allows the six-speed automatic transmission to settle into its highest gear, using little throttle to maintain cruising speed. This is especially beneficial for those who frequently travel longer distances, offsetting the lower city MPG and increasing the overall average.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 GMC Canyon 2WD 2.8L diesel at $2,400. This is based on driving 15,000 miles per year, with a mix of city and highway driving that reflects the EPA’s combined MPG rating. The calculation also uses the national average fuel price at the time, which will change based on market conditions. Individual driving habits and fuel prices will influence actual expenses, but $2,400 is a useful baseline for prospective buyers to assess the Canyon diesel’s operating costs and compare it to other vehicles.

Real-world expectations

EPA estimates provide a standard, but real-world fuel economy can change a lot based on driving style, load, and weather. Canyon diesel owners say that achieving the EPA’s 30 MPG highway rating is possible when driving without a load and maintaining consistent speeds. However, towing, aggressive acceleration, and frequent short trips can lower the average. The Canyon diesel’s performance is also sensitive to temperature; colder weather can reduce fuel economy because of the diesel’s combustion. The key to maximizing fuel efficiency is to drive smoothly and minimize idling.

How it compares

The 2019 GMC Canyon 2WD 2.8L diesel’s fuel economy is good compared to gasoline-powered mid-size trucks. The V6-powered Toyota Tacoma, for example, typically gets around 19-20 MPG combined in real-world driving. A comparable gasoline V6 Canyon gets similar numbers. Even the four-cylinder gasoline Tacomas struggle to match the diesel’s highway MPG. The older Nissan Frontier, known for its simplicity, offers poorer fuel economy, often around 17 MPG combined. This difference in fuel efficiency is a big factor for buyers who want to minimize running costs, especially if they drive long distances. The diesel’s higher initial price becomes an investment, saving money compared to the gasoline alternatives.

Tips to maximize efficiency

One way to improve fuel economy in the Canyon diesel is to be careful with the throttle. The engine produces a lot of torque at low RPMs, so there’s often no need to accelerate hard. Drive gently to use less fuel and help the transmission shift smoothly into higher gears.

Correct tire inflation is important. Under-inflated tires increase rolling resistance, making the engine work harder and burn more fuel. Check your tires regularly and inflate them to the recommended pressure on the door jamb sticker. This simple step can contribute to better mileage.

Minimize idling. Diesel engines do not need long warm-up periods. Idling burns fuel without moving the vehicle. If you will be stationary for more than a minute, turn off the engine and restart when you’re ready to go.

Consider using a fuel additive for diesel engines. Some additives can improve fuel combustion, clean injectors, and improve lubrication, which can improve fuel economy. Research different additives and choose one that is appropriate for your driving and fuel type.

Pay attention to the CANYON MPG across all years when considering a used model. Small differences in equipment and software can change fuel economy and performance. Compare the fuel economy to all GMC fuel economy data to help determine if this engine meets your needs.