23 MPG combined. That’s the EPA figure for the 2018 Chevrolet Colorado 4WD equipped with the 2.8L Duramax diesel. While it might not sound like much compared to compact cars, it balances capability and reasonable efficiency for a mid-size truck that can tow 7,700 pounds. This Colorado isn’t for those obsessed with fuel efficiency; it’s for contractors hauling tools, outdoors enthusiasts visiting remote campsites, or anyone who needs a capable truck without needing a full-size rig.

City and highway performance

The 20 MPG city and 28 MPG highway ratings further illustrate the Colorado diesel’s strengths. The city figure is respectable, suggesting the engine’s strong low-end torque helps move the Colorado’s weight without using excessive fuel in stop-and-go traffic. The 28 MPG highway number is where this truck excels. The diesel’s efficiency at sustained speeds makes this Colorado a good choice for long-distance journeys where fuel stops are infrequent. This engine performs best when working, so its efficiency is most obvious on the open road.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Chevrolet Colorado 4WD 2.8L diesel at $2,400. This figure is calculated based on driving 15,000 miles per year, split roughly 55% city and 45% highway, and using the national average fuel price at the time of calculation. Your actual costs will vary depending on your driving habits, location, and changes in fuel prices. Maintenance costs also vary with a diesel powertrain. The $2,400 provides prospective owners with a standard for budgeting.

Real-world expectations

EPA estimates are useful for comparison, but real-world MPG often differs from the official figures. The Colorado diesel’s fuel economy greatly depends on driving style and how it is used. Owners who frequently tow heavy loads or drive aggressively can expect significantly lower MPG. Those who prioritize smooth acceleration, anticipate traffic, and maintain consistent speeds will likely see figures closer to the EPA estimates. Several factors like tire pressure, altitude, and ambient temperature also affect mileage. Always consult owner forums to see what enthusiasts are reporting for COLORADO MPG across all years.

How it compares

Other mid-size trucks do not perform as well when equipped to tow. The Toyota Tacoma, for example, typically returns significantly lower fuel economy when configured with its V6 engine, especially with 4WD. The Tacoma isn’t offered with a diesel, and V6 models struggle to reach 20 MPG combined. The Nissan Frontier, with its older powertrain, is even less fuel-efficient, rarely exceeding 18 MPG combined. Older versions of the Ford Ranger with the 2.3L EcoBoost can get similar highway numbers, but generally get lower city MPG. The Jeep Gladiator, although offering a diesel option starting in 2020, early gas-powered models have lower fuel economy than the Colorado diesel. For those prioritizing MPG and towing in a mid-size truck, the 2018 Colorado 4WD 2.8L stands out. Explore all Chevrolet fuel economy data to see where newer models fit.

Tips to maximize efficiency

Diesel engines react to driving habits. Avoid fast acceleration and hard braking. Driving smoothly will keep the engine in its most efficient range, increasing fuel economy. Keeping a light foot on the accelerator will save money.

Regular maintenance is important for diesel engines. Follow the manufacturer’s recommended service schedule, including oil changes and filter replacements. Dirty filters and old oil can reduce engine efficiency.

Tire pressure is important for fuel economy. Ensure your tires are inflated to the recommended pressure listed on the doorjamb sticker. Under-inflated tires increase rolling resistance, reducing fuel efficiency.

Remove unnecessary weight from the truck. Extra cargo adds to the vehicle’s overall weight, requiring the engine to work harder. Removing unused equipment saves money.

Use cruise control on the highway to maintain a consistent speed. Cruise control reduces changes in throttle position, which can improve fuel economy on long drives. Avoid changing the speed for maximum savings.