23 MPG combined is a reasonable figure for the 2021 Chevrolet Colorado 2WD with the 2.8L Duramax diesel, but it’s important to remember what this truck *is*: a mid-size workhorse designed for hauling, towing, and tackling jobs that would leave a crossover whimpering. Owners aren’t prioritizing Prius-like efficiency; they’re seeking capability, and this diesel provides it with a respectable compromise at the pump.

City and highway performance

The EPA estimates suggest 20 MPG in the city and a more impressive 30 MPG on the highway. The city figure is largely dependent on driving style and traffic conditions, as the stop-and-go nature of urban driving tends to punish diesels more than their gasoline counterparts. However, the highway MPG is where the Colorado 2.8L shines. That low-end torque allows it to cruise comfortably at highway speeds, barely breaking a sweat. This makes it an option for those who frequently travel long distances with a load, or even without, without stopping at every gas station along the way. Owners who can spend more of their time driving at highway speeds will find themselves getting the most out of the diesel engine.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,400 for this particular Colorado configuration. This figure is based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway, using national average fuel prices. That said, individual fuel costs will fluctuate based on location, local fuel prices, and personal driving habits. Aggressive driving or consistent towing will undoubtedly increase this yearly expense. Someone who commutes daily will find this number more representative than someone who only uses the truck for weekend projects.

Real-world expectations

While the EPA numbers provide a baseline, real-world fuel economy can vary significantly. Owners have reported everything from exceeding the 30 MPG highway estimate on long trips to struggling to maintain 18 MPG in mixed driving with frequent heavy loads. Factors like tire pressure, ambient temperature, and the truck’s maintenance condition all play a role. Perhaps the biggest determinant, however, is load. A Colorado regularly used for its intended purpose, such as towing a trailer or hauling equipment, will naturally see a decrease in fuel economy. Treat it like a regular vehicle during normal drives, and you’ll see the savings.

How it compares

Compared to its gasoline-powered counterparts, the 2.8L diesel Colorado generally offers better fuel economy. For example, the 2021 Colorado with the 3.6L V6 engine and 2WD is rated at 18 MPG combined. The Toyota Tacoma, another popular mid-size truck, with its 3.5L V6 engine generally achieves around 20 MPG combined. Keep in mind, one isn’t necessarily better than the other. Some owners value the higher horsepower in gasoline configurations while others prefer the durability and torque of the diesel. All Chevrolet fuel economy data across its lineup shows the tradeoff between performance and fuel economy.

The Ford Ranger, after its reintroduction to the US market, offers a combined 22 MPG with its 2.3L EcoBoost engine and 2WD, making it a close competitor in terms of efficiency. However, the diesel Colorado still provides a different driving experience and offers better towing capacity for many buyers. Ultimately, the choice depends on individual needs and priorities. It’s also important to carefully consider what other COLORADO MPG across all years have offered for reference when shopping the used market.

Tips to maximize efficiency

Maintain proper tire pressure. The correct pressure, typically found on a sticker inside the driver’s side door, ensures optimal rolling resistance, which translates directly into improved fuel economy. Underinflated tires create unnecessary drag, forcing the engine to work harder and burn more fuel.

Avoid aggressive driving habits. Rapid acceleration and hard braking waste fuel. The 2.8L diesel’s torque is readily available, meaning you don’t need to bury the accelerator pedal to get up to speed. Gentle acceleration and anticipation of traffic flow will significantly improve your MPG.

Minimize unnecessary idling. Diesel engines, in particular, are less efficient when idling for extended periods. If you’re waiting somewhere for more than a minute or two, turn off the engine. Modern starters and batteries are designed to handle frequent starts without issue.

Keep up with scheduled maintenance. Regular oil changes, air filter replacements, and fuel filter maintenance all contribute to optimal engine performance and efficiency. A well-maintained engine runs more smoothly and requires less fuel to operate.

Consider using cruise control on the highway. Maintaining a consistent speed not only reduces driver fatigue but also helps the engine operate more efficiently. Cruise control minimizes speed fluctuations, leading to better fuel economy on long highway stretches.