16 MPG combined. That’s the plain truth about the 2023 GMC Yukon XL 4WD with the 5.3L V8. It’s a number that might shock some. But for the families, the contractors, and the adventurers who depend on this strong vehicle, it’s a calculated trade-off. They need the Yukon XL’s large cargo space, its towing capacity, and its ability to haul a small army comfortably across any terrain. Fuel efficiency, while not irrelevant, is simply a lower priority.

City and highway performance

The EPA estimates for the 2023 Yukon XL 4WD with the 5.3L V8 put city driving at 15 MPG and highway driving at 19 MPG. These figures show the difficulty of moving nearly three tons of SUV through stop-and-go city traffic or maintaining highway speeds. The 5.3L V8, while a proven and reliable workhorse, doesn’t exactly sip fuel. The 10-speed automatic transmission helps to optimize efficiency by keeping the engine in its sweet spot, but ultimately, physics win. A lighter vehicle, or one with a smaller engine, will always achieve better numbers. But neither of those would accomplish what this vehicle was designed for.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 GMC Yukon XL 4WD 5.3L V8 at $2,750. This is based on driving 15,000 miles per year and using national average fuel prices. This is just an estimate, and your actual fuel costs may vary depending on your driving habits, more city versus highway driving, and the fuel prices in your area. Those who frequently tow heavy loads or live in areas with consistently high fuel costs will likely exceed this annual estimate. The YUKON MPG across all years varies considerably, so be sure to check the specs for your specific trim level and model year.

Real-world expectations

Don’t expect to consistently match the EPA estimates in real-world driving. Achieving 15 MPG in the city is possible with a light foot and carefully anticipating traffic flow. However, aggressive acceleration or frequent idling will quickly reduce those numbers. The same applies on the highway; maintaining a steady speed in optimal conditions might yield 19 MPG, but headwinds, hilly terrain, or exceeding the speed limit will undoubtedly impact fuel economy. The vehicle’s onboard computer provides a running average, which can be a tool in monitoring your driving habits and their effect on fuel consumption. It’s best to view the EPA estimates as a benchmark rather than a guarantee.

How it compares

The Yukon XL’s fuel economy is about where you’d expect for its class. The Chevrolet Suburban 4WD with the same 5.3L V8 posts identical EPA figures. A Ford Expedition Max 4×4 with the 3.5L EcoBoost V6 manages a slightly better 17 MPG combined, because its turbocharged engine delivers comparable power with less displacement. The Nissan Armada 4WD, with its 5.6L V8, comes in around 15 MPG combined, making it a less efficient choice. Buyers in this segment often compare these vehicles, weighing fuel economy against factors such as towing capacity, passenger space, and overall cost. The Yukon XL’s fuel consumption is a known quantity, and for many buyers, the benefits outweigh the cost at the pump. For those interested in alternatives, explore all Gmc fuel economy data across their model range.

Tips to maximize efficiency

Drive smoothly and avoid aggressive acceleration. The 5.3L V8 delivers plenty of power, but using it carefully will have a noticeable impact on fuel consumption. Anticipate traffic flow and maintain a steady speed whenever possible. Frequent stop-and-go driving burns fuel unnecessarily.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel. Check your tire pressure regularly and inflate to the recommended levels, which can be found on a sticker inside the driver’s side doorjamb.

Minimize idling. Idling consumes fuel without covering any distance. If you’re going to be stopped for more than a minute or two, turn off the engine. Modern vehicles are designed to restart quickly and efficiently, so there’s no need to let the engine run unnecessarily.

Reduce weight and aerodynamic drag. Remove any unnecessary items from the vehicle, as extra weight reduces fuel economy. Avoid carrying cargo on the roof unless absolutely necessary, as it increases aerodynamic drag and reduces efficiency.

Use cruise control on the highway. Cruise control helps to maintain a constant speed, which can improve fuel economy, especially on long trips. Avoid using cruise control in hilly terrain, as the transmission may shift frequently and negate the benefits.