16 MPG combined is what you’ll get with the 2024 GMC Yukon XL 4WD with the 5.3L V8. To be clear, most buyers of this vehicle aren’t prioritizing fuel efficiency. They’re buying space, towing capacity, and the ability to haul a lot of people (and their gear) comfortably. This isn’t a commuter car; it’s a tool, and fuel consumption is simply a cost of doing business. Buyers are often families needing three rows, contractors requiring serious hauling capabilities, or anyone who values size and capability above all else. They know what they’re getting.

City and highway performance

The EPA estimates 15 MPG in the city and 18 MPG on the highway. These numbers reflect the Yukon XL’s inherent compromises. The city figure suffers because of frequent stop-and-go driving, constantly fighting against the vehicle’s considerable weight. The highway figure is slightly better, using the 10-speed automatic transmission to maximize efficiency when cruising. Even on the open road, aerodynamic limitations and that weight have an effect. Don’t expect to see 18 MPG consistently, especially if you’re loaded down with passengers and cargo or fighting a headwind. Driving style also plays an important role. Hard acceleration and excessive speed will quickly decrease those estimates.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,750 for the 2024 GMC Yukon XL 4WD 5.3L 8-cyl. This figure is based on driving 15,000 miles per year and using national average fuel prices. This is just an estimate. Your actual fuel costs will vary depending on your driving habits, the type of driving you do (city vs. highway), and the price of gasoline in your area. If you drive more than 15,000 miles a year, or if gas prices are higher where you live, expect to pay significantly more to keep your Yukon XL fueled up.

Real-world expectations

Forget the EPA numbers for a moment. Real-world MPG for the 2024 Yukon XL 4WD 5.3L V8 is heavily dependent on how you use it. If you’re primarily driving short distances around town, expect to see figures closer to the low end of the EPA range, maybe even dipping below 15 MPG. If you do a lot of highway driving at moderate speeds, you might be able to approach 18 MPG, but that requires a disciplined foot and avoiding aggressive acceleration. Towing will destroy any fuel efficiency. Expect single-digit MPG when pulling a trailer, depending on its size and weight. The key takeaway is to manage expectations. The Yukon XL is not a fuel sipper, and its fuel economy will fluctuate significantly based on usage.

How it compares

The Yukon XL occupies a unique space in the full-size SUV segment. The Chevrolet Suburban, its close relative, delivers similar fuel economy, typically within 1 MPG of the Yukon XL across all driving conditions. The Ford Expedition Max, equipped with its 3.5L EcoBoost V6, manages slightly better, around 17 MPG combined. A Nissan Armada comes in around 15 MPG combined. One vehicle a Yukon XL buyer might consider is the Cadillac Escalade, which, in 4WD and with the 6.2L V8, gets around 16 MPG, the same. The Yukon XL offers considerable capability, but it makes no apologies for its fuel consumption; buyers should check out all Gmc fuel economy data and YUKON MPG across all years to fully understand where it lands.

Tips to maximize efficiency

While the 2024 Yukon XL 4WD 5.3L V8 will never be a fuel-efficient vehicle, there are steps you can take to minimize its thirst. Avoid aggressive acceleration and braking, especially since the V8 has plenty of torque, so there’s no need to floor it from every stop. Gradual acceleration will lower fuel consumption, especially in city driving.

Maintain proper tire pressure. Underinflated tires increase rolling resistance, forcing the engine to work harder and burn more fuel. Check your tire pressure regularly and inflate them to the recommended level found on the doorjamb sticker.

Minimize idling. Idling wastes fuel, especially in a large-displacement engine like the 5.3L V8. If you’re going to be stopped for more than a minute or two, turn off the engine. Modern engines are designed to restart quickly and efficiently, so you won’t cause any undue wear and tear.

If your Yukon XL is equipped with cylinder deactivation (Dynamic Fuel Management), let it do its job. This system shuts down cylinders when full power isn’t needed, improving fuel economy. Avoid driving in a way that constantly activates and deactivates the system, as this can be inefficient. Steady speeds and gentle acceleration are key.