While gas-powered trucks remain a popular choice for easy refueling, diesel engines continue to offer outstanding power, exceptional torque, and impressive long-term durability. GMC maintains a strong lineup of high-performance diesel options across many of its popular pickup and work truck models. Keep in mind that diesel availability varies by trim level and model year, giving you plenty of great options to find the perfect match for your driving needs. Explore our comprehensive diesel truck guide to find the perfect GMC model for your lifestyle—our team at GMC of Riverfront Park is always here and ready to help you every step of the way!
GMC Sierra 1500
The GMC Sierra 1500 proves that you don't need a massive commercial rig to enjoy the benefits of Duramax diesel power. The light duty GMC Sierra 1500 has a diesel engine option, specifically the 3.0-liter turbocharged diesel inline-six engine that is standard on the AT4 and AT4X trim packages. It is available as an upgrade on trim levels like Denali, SLE, SLT, and Elevation as well. It provides 305 horsepower and 495 lb-ft, giving you a robust driving experience despite the fact it's the smallest of the GMC truck lineup. You can enjoy a max towing capacity of up to 13,300 lbs with the right package. Like all of the diesel engines available for GMC trucks today, it's a reliable Duramax design. Despite the towing capacity and engine power, this light duty truck achieves fuel efficiency as high as 28 miles per gallon on the highway to stretch your budget even farther.
- 3.0-liter Turbo-Diesel Inline-Six Engine
- 305 Horsepower and 495 lb-ft of Torque
- Up to 13,300 lbs Maximum Towing Capacity
- Up to 28 MPG Highway Fuel Efficiency
GMC Sierra 2500HD
The GMC Sierra 2500HD offers a diesel engine option that's available on all seven trim levels, including the Pro and Denali levels. It's standard on the Denali Pro and AT4X packages. This is a 6.6-liter V8 engine that puts out 470 horsepower and 975 lb-ft of torque. That's a lot of power for hauling and towing demands, and it's not surprising that the maximum towing capacity is 22,500 lbs with the right package. These kinds of heavy-duty trucks can provide reliable performance through hundreds of thousands of miles, especially when equipped with a diesel engine.
- 6.6-liter Duramax V8 Turbo-Diesel Engine
- 470 Horsepower and 975 lb-ft of Torque
- Up to 22,500 lbs Maximum Towing Capacity
- Available Across All 7 Trim Packages
GMC Sierra 3500HD
The GMC Sierra 3500HD shares the same V8 engine as the 2500HD model, only it's the standard model rather than an upgrade. Combined with a dual rear suspension and a towing package, this heavy duty trucks can achieve a maximum towing capacity of 36,000 lbs. It's a powerful option for demanding commercial towing tasks, or for moving your luxury fifth-wheel camper with ease. The diesel engine produces almost 70 more horsepower and nearly double the amount of torque as the standard gas engine for the 3500HD, making it a clear choice for the most demanding applications.
- Standard 6.6L Duramax Turbo-Diesel V8
- Massive 975 lb-ft of Low-End Torque
- Up to 36,000 lbs Maximum Towing Capacity
- Available Dual Rear Wheel (Dually) Configuration
Used GMC Canyon Diesel Models
While only GMC Sierra trucks currently offer diesel engine options, there are some used GMC trucks still on the market today offering this fuel option. Produced in 2022 and previous model years, the GMC Canyon provided an affordable diesel truck for drivers looking for a balance between efficiency and performance. A 2.8-liter Duramax engine produces 181 horsepower and 369 lb-ft of torque, providing a reasonable 7,700 lb towing capacity with the right trim package. If you're in the market for a light duty truck that can provide up to 30 miles per gallon on the highway, a used GMC Canyon might work best for you.
Why Choose a GMC Diesel Truck? (Gas vs. Diesel)
Deciding between a gasoline and a diesel GMC truck comes down to how you plan to use your vehicle. Here are four key reasons why choosing a Duramax diesel engine provides long-term advantages for work and play:
- First, diesel trucks produce a higher torque level at lower RPMs than gas-powered models. When you're taking off from a stop with a heavy load, there's much less strain on the engine. This also assists in climbing steep hills or making the most of 4 wheel drive in a muddy environment.
- Second, diesel is more efficient than gasoline as a fuel and provides better mileage. You'll spend less without sacrificing power, which makes a big difference for heavy hauling and commercial uses.
- Third, diesel engines last longer than gasoline engines. That means you can expect a longer life and higher mileage from your GMC truck if you choose this kind of fuel. With maintenance, diesel work truck engines can last 300,000 miles or more. Deal with fewer interruptions to your business or daily work with the help of a GMC diesel truck.
- Fourth, all of these factors add up to help diesel trucks maintain their resale value better than gasoline-powered models. Whether you decide to bring your truck to the dealership to trade it in or sell it privately, you'll get more money back to put towards your new vehicle.
Finding the right truck starts at GMC of Riverfront Park. Whether you need the high efficiency of the Sierra 1500 Duramax, the massive capability of a Sierra 2500HD or 3500HD, or a budget-friendly pre-owned Canyon diesel, our sales specialists are ready to help you explore your options and get behind the wheel for a test drive.
Find the Diesel GMC Trucks You Need in Spokane
Visit us at GMC of Riverfront Park to explore our complete inventory of new Sierra diesel trucks and quality pre-owned work vehicles. Our team is here to help power your business, ranch, or daily drive.
Dealership Location & Hours
636 E. Sprague Avenue, Spokane, WA 99202
Sales: 509-209-9966
- Monday – Saturday: 9:00 AM – 7:30 PM
- Sunday: 10:00 AM – 6:00 PM