Advice from Granby Chevrolet Buick GMC
Why choose a diesel engine? Low-end torque, highway efficiency and towing performance are some of its key advantages. At Granby Chevrolet Buick GMC, we explain what these benefits mean and how they can fit your driving habits.
By the Granby Chevrolet Buick GMC team
Diesel engine benefits at a glance
Wondering whether diesel suits your driving needs? Ask our team.
How does a diesel engine work?
A diesel engine compresses air inside its cylinders, raising its temperature. Fuel is then injected under high pressure and ignites in the hot air. This process, called compression ignition, contributes to the engine’s efficiency.
For drivers, the appeal of a diesel engine comes mainly from the way it delivers torque and uses fuel.
Diesel engine torque: strength at low engine speeds
Torque is the engine’s twisting force. Diesel engines are known for producing strong torque at low engine speeds, allowing them to deliver substantial pulling effort without needing to rev as high.
This is particularly helpful when getting moving with a trailer or climbing a hill. The engine can sustain the effort at a relatively low speed.
Horsepower and torque: what is the difference?
Horsepower, or HP, measures how quickly an engine can do work. It contributes to acceleration and the ability to sustain an effort, such as climbing a hill.
Torque, usually measured in pound-feet (lb-ft), describes the engine’s twisting force. Strong low-end torque helps get a load moving. The transmission also plays an important role in delivering that force to the wheels.
Diesel fuel efficiency on longer trips
A diesel engine’s efficiency can contribute to favourable fuel consumption, particularly on longer trips at steady speeds. When comparing engines, consider both the vehicle and how you plan to use it.
If you regularly cover long distances, this efficiency can be a useful everyday advantage.
Actual fuel consumption varies with driving style, load, temperature and route. To understand published ratings for applicable models, see Natural Resources Canada’s EnerGuide for vehicles.
Driving range for the open road
A diesel vehicle’s fuel efficiency can help you go longer between fuel stops. That can be welcome on regular highway trips and weekend getaways alike.
Driving range depends on the vehicle, fuel tank capacity and driving conditions. Efficient fuel use helps make the most of each tank.
Towing with a diesel engine
Low-end torque is an advantage when towing a travel trailer, enclosed trailer or boat. It helps get a load moving and supports sustained effort on hills.
On models equipped with an exhaust brake, this feature helps slow the vehicle on descents and reduces demand on the service brakes. For model-specific information, read our 2026 Silverado towing capacity guide for the 1500, 2500 HD and 3500 HD.
Overall towing capacity depends on the complete vehicle configuration, including the chassis, transmission and hitch. Our advisors in Granby can help you confirm the right setup for your needs.
Duramax: Chevrolet and GMC diesel engines
Duramax is the family of diesel engines offered on select Chevrolet and GMC models. Our team can explain the available engines and help you choose a configuration suited to your driving and towing needs.
Whether you are considering a Chevrolet diesel engine or a GMC diesel engine, we are here to guide you in Granby. We can also explain diesel maintenance requirements. For maintenance or service, you can book an appointment with our service department.
Frequently asked questions about diesel engines
What are the main benefits of a diesel engine?
Low-end torque, highway efficiency and towing performance are among its main advantages. The benefits vary with the engine, vehicle and how it is used.
Why is diesel engine torque useful?
Strong torque at low engine speeds helps get a load moving and sustain effort on hills without needing to rev the engine as high.
Is a diesel engine a good choice for long trips?
Its efficiency at steady speeds can appeal to drivers who regularly travel long distances. Our team can help you assess your needs.
Does a diesel engine improve towing capability?
Its torque can make towing easier. However, the rated towing capacity depends on the complete vehicle configuration, including the chassis, transmission and hitch.
What are Duramax engines?
Duramax is a family of diesel engines offered on select Chevrolet and GMC models. Specifications and availability depend on the model and configuration.
Related reading: explore the Chevrolet Multi-Flex and GMC MultiPro tailgate features to learn more about available equipment.
