17 MPG combined. Nobody buys a 2019 Chevrolet Colorado ZR2 expecting Prius-like fuel economy. This off-road-focused truck is engineered for prowess on challenging terrain, not for maximizing trips between fill-ups. Still, understanding what leads to its fuel consumption and how it compares against similar vehicles is important for prospective owners. The ZR2 occupies a rare space in the mid-size truck market, where off-road capability trumps fuel efficiency in the buyer’s priorities. If you are among those buyers, read on.

City and highway performance

The ZR2’s EPA ratings break down to 16 MPG in the city and 18 MPG on the highway. This modest spread between city and highway figures suggests the Colorado ZR2 is not particularly optimized for either environment. Its relatively short wheelbase and high stance, combined with knobby tires, contribute to lower efficiency in urban driving. On the highway, the aerodynamic limitations of its aggressive styling and the increased rolling resistance of its off-road tires come into play. The 3.6L V6 and 8-speed automatic transmission provide ample power for both conditions, but that power demands fuel.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,600 for the 2019 Chevrolet Colorado ZR2. This figure is based on driving 15,000 miles per year, using a national average fuel price. It is a useful benchmark, but fuel prices vary considerably across the country, and your personal driving habits will have a significant impact. If you spend a considerable amount of time off-road, or if you have a heavy right foot around town, you likely will spend more than this estimate.

Real-world expectations

While EPA estimates provide a standardized comparison, real-world MPG can vary widely. ZR2 owners frequently report figures close to the EPA estimates, but aggressive driving, aftermarket modifications like roof racks or larger tires, or prolonged idling will all lead to lower fuel economy. Off-roading, by its very nature, involves low speeds and high engine loads, which further reduces MPG. The ZR2’s appeal lies in its go-anywhere capability, and that capability inevitably comes at a price at the pump. Check out COLORADO MPG across all years to see trends.

How it compares

Compared to other mid-size trucks, the ZR2’s fuel economy is predictably lower than more road-focused models. A Toyota Tacoma TRD Off-Road, while not as overtly aggressive as the ZR2, manages around 20 MPG combined with its V6 engine. The standard Chevrolet Colorado with 4WD and the same 3.6L V6 achieves about 20 MPG combined. The Jeep Gladiator Rubicon, another direct competitor known for off-road prowess, also hovers around 19 MPG combined. These differences, while modest, accumulate over time, and might be a factor for buyers who want some off-road capability but prioritize overall fuel efficiency. You can see all Chevrolet fuel economy data.

Tips to maximize efficiency

First, resist the urge to floor the accelerator at every opportunity. The ZR2’s V6 engine is responsive, but heavy acceleration significantly impacts fuel consumption. Practice smooth and gradual acceleration to conserve fuel. Consider using the cruise control on the highway to maintain a consistent speed and reduce unnecessary throttle changes, especially on relatively flat terrain.

Keep your tires properly inflated to the recommended pressure. The ZR2’s aggressive off-road tires have more rolling resistance than standard tires, and under-inflation exacerbates this issue. Regularly check and adjust tire pressure to reduce drag and improve fuel economy. Refer to the sticker on your driver’s side doorjamb for the correct pressure.

Minimize unnecessary weight in the vehicle. The ZR2 is already a heavy truck, and carrying extra cargo adds to the load, increasing fuel consumption. Remove any unnecessary items from the bed and cabin to reduce weight and improve MPG. A lighter truck requires less energy to accelerate and maintain speed.

Avoid excessive idling. Idling consumes fuel without covering any distance. If you anticipate a stop of more than a minute, shut off the engine. The ZR2’s engine starts quickly and reliably, making short stops a good opportunity to save fuel. Prolonged idling is especially wasteful in cold weather, as the engine works to maintain operating temperature.