20 MPG combined isn’t going to win any awards, but for the 2017 Chevrolet Colorado ZR2 4WD with the 2.8L Duramax diesel, it’s a figure that’s almost beside the point. Buyers of this truck aren’t prioritizing efficiency; they’re after serious off-road capability in a mid-size package, and they’re willing to accept the trade-offs.

City and highway performance

The EPA estimates put the ZR2 at 19 MPG in the city and 22 MPG on the highway. These numbers reflect the reality of driving a vehicle with a significant lift, aggressive off-road tires, and a focus on low-end torque rather than high-speed aerodynamic efficiency. The 2.8L Duramax diesel is a strong engine, but it’s not designed to sip fuel; it’s built to crawl over rocks and haul gear. The relatively small difference between city and highway MPG suggests that aerodynamics and tire rolling resistance are bigger factors than stop-and-go driving in this particular truck.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2017 Chevrolet Colorado ZR2 4WD at $2,800 per year. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that diesel fuel prices fluctuate more than gasoline, and your actual costs will depend on your driving habits and the prices in your area. This is still an estimate, so expect your own costs to vary.

Real-world expectations

Don’t be surprised if you see numbers slightly lower than the EPA estimates in real-world driving. The ZR2’s off-road suspension and tires create more rolling resistance, especially if you frequently drive on unpaved surfaces. Hauling gear, using four-wheel-drive frequently, or living in hilly terrain will also negatively impact fuel economy. It’s reasonable to expect numbers in the high teens if you use this truck as intended.

How it compares

Compared to other mid-size trucks, the Colorado ZR2’s fuel economy falls towards the lower end of the spectrum. A comparable gasoline-powered Colorado 4WD, equipped with the available 3.6L V6, achieves around 19 MPG combined. The Toyota Tacoma TRD Off-Road, another popular off-road-focused truck, manages slightly better at around 20 MPG combined with its V6 engine. The Nissan Frontier PRO-4X, a less modern offering, comes in significantly lower, often struggling to reach 18 MPG combined. For buyers specifically seeking diesel power and off-road capability in a mid-size platform, the ZR2 really had no direct competitors at the time. Those who are looking for better fuel efficiency could investigate all Chevrolet fuel economy data for more traditional road-focused trucks. Shoppers should also compare COLORADO MPG across all years to see different powertrain options.

Tips to maximize efficiency

While the Colorado ZR2 isn’t primarily about fuel efficiency, there are steps you can take to improve your MPG. Avoid aggressive acceleration and braking, as diesel engines are most efficient when operating at consistent speeds. Gradual acceleration will minimize fuel consumption.

Check your tire pressure regularly. Low tire pressure increases rolling resistance and reduces fuel economy. Make sure your tires are inflated to the pressure recommended on the door jamb sticker. The ZR2’s larger, knobby tires will have a slightly bigger impact when pressure is low.

Minimize idling time. Diesel engines consume fuel even when stationary. If you’re going to be stopped for more than a minute or two, turn off the engine. Modern diesels are designed to restart quickly and efficiently.

Consider a less aggressive tire if you do a lot of highway driving. The ZR2’s standard off-road tires are great for trails, but they create significant rolling resistance on pavement. Switching to a more highway-oriented tire can improve fuel economy.

Keep up with regular maintenance. A well-maintained engine runs more efficiently. Change your oil and filter regularly, keep your air filter clean, and make sure your fuel injectors are functioning properly.