Gas Mileage on a Chevy Traverse

Powertrain Evolution: 3.6L High Feature V6 vs 2.5L Turbo Inline-4

For over a decade, the hallmark powertrain of the Chevrolet Traverse was the 3.6-liter High Feature V6 engine paired with a 9-speed automatic transmission, generating 310 horsepower. In front-wheel-drive trim, this setup delivered an EPA-rated 18 mpg in city driving and 27 mpg on the highway. In all-wheel-drive configurations, ratings adjusted to 17 mpg city and 25 mpg highway, resulting in a combined rating of 20 mpg.

The latest generation Traverse marks a dramatic powertrain shift, replacing the venerable V6 with a high-output 2.5-liter turbocharged four-cylinder engine producing 328 horsepower and 326 lb-ft of torque. Coupled with an eight-speed automatic, the turbocharged four-cylinder optimizes low-end torque delivery, offering responsive passing power while maintaining competitive highway cruising economy.

Compare EPA fuel economy ratings and fuel tank specifications across Chevy Traverse generations:

Despite weighing over 4,300 pounds unloaded, the Traverse achieves commendable efficiency for its size through sophisticated thermal management and active aero shutters located behind the front lower grille. These motorized shutters close at highway speeds to deflect turbulent air smoothly around the front fascia, cutting the aerodynamic drag coefficient.

Weight, Aerodynamics, and Three-Row Passenger Load Impacts

As a full-size three-row crossover capable of seating up to eight passengers, the real-world gas mileage of a Traverse fluctuates heavily based on payload weight. Carrying seven passengers and a full complement of luggage adds 1,000 to 1,200 pounds of live load, forcing the engine and transmission to stay in lower gear ratios longer during highway hill climbs, shaving 2 to 3 mpg off baseline numbers.

Towing a camper or boat drastically impacts fuel consumption. When properly equipped with the factory trailering package, the Traverse can tow up to 5,000 pounds. However, pulling a tall, blunt-nosed travel trailer acts like an aerodynamic parachute, frequently reducing highway fuel economy down to 10 to 13 mpg, necessitating refueling stops every 180 to 220 miles.

Review the estimated impact of real-world cargo loads, trailering, and speeds on Traverse efficiency:

Highway cruising speed is another dominant variable. The tall front profile of a three-row SUV encounters exponentially increasing aerodynamic resistance above 65 mph. Cruising at 78 mph on interstates burns up to 15 percent more fuel than cruising at 68 mph, turning an otherwise efficient 26 mpg road trip into a 22 mpg run.

Transmission Shift Logic and Highway Cruising Optimization

Modern 9-speed and 8-speed automatic transmissions in the Traverse feature tall overdrive ratios engineered specifically for relaxed highway cruising. In 9th gear, the 3.6L V6 engine hums along at under 1,600 RPM at 65 mph, barely sipping fuel on flat highways.

Drivers can utilize the onboard Driver Information Center (DIC) fuel economy display to coach themselves toward better efficiency. Monitoring instantaneous fuel consumption reveals when minor throttle adjustments allow the transmission to hold high gears, preventing unnecessary downshifts that spike engine RPM and burn surplus gas.