16 MPG combined won’t win any awards, but for the 2023 GMC Yukon XL 2WD with the 6.2L V8, it’s the cost for a very specific set of capabilities. This isn’t a vehicle bought to save money at the pump. It’s purchased to haul large families, tow substantial loads, and offer limousine-like space for passengers and cargo. The fuel economy is simply a factor to be managed, not a primary deterrent.

City and highway performance

The EPA estimates for the 2023 Yukon XL 2WD 6.2L are 14 MPG in the city and 19 MPG on the highway. The city figure reflects the realities of stop-and-go driving, where the large V8 engine requires considerable fuel to repeatedly accelerate the vehicle’s weight. The highway number, while still not exceptional, benefits from the 10-speed automatic transmission’s ability to keep the engine operating at lower RPMs when cruising, along with cylinder deactivation to save fuel.

Annual fuel cost

The EPA calculates that the annual fuel cost for this Yukon XL configuration is $3,600. This figure is based on driving 15,000 miles per year and using national average fuel prices. Of course, this is just an estimate, and the actual cost will vary considerably depending on individual driving habits, local fuel prices, and the type of driving (more city or more highway miles). Be sure to check YUKON MPG across all years to help you make an informed decision.

Real-world expectations

While the EPA figures provide a standardized benchmark, real-world fuel economy often differs. Aggressive driving, frequent towing, or even consistent headwinds can significantly impact mileage. Conversely, careful driving, proper tire inflation, and regular maintenance may allow drivers to get closer to the EPA estimates. Expect that the 14 MPG city figure can drop even lower in heavy traffic. The 19 MPG highway number is more attainable on long road trips, especially when maintaining a steady speed.

How it compares

Compared to other large SUVs, the 2023 GMC Yukon XL 2WD 6.2L sits near the bottom of the fuel economy spectrum, which is not surprising. A similarly equipped 2023 Chevrolet Suburban with the same engine and drivetrain achieves virtually identical EPA numbers. For buyers prioritizing fuel economy, options with smaller engines or different powertrains are available. For example, the Yukon XL with the 3.0L Duramax diesel boasts significantly better figures—around 23 MPG combined. Even the smaller Yukon, without the “XL” length, offers only a marginal improvement. Consider the Ford Expedition, which, despite its turbo V6, is rated around 17 MPG combined. Buyers cross-shopping these vehicles need to honestly assess their space and towing needs and then weigh that against their fuel budget. Also consider that all Gmc fuel economy data might offer some insight.

Tips to maximize efficiency

Anticipate traffic flow and avoid aggressive acceleration and hard braking. The Yukon XL is a heavy vehicle, and quick starts and stops consume a lot of fuel. Gradually accelerate and brake smoothly to conserve energy.

Use cruise control on the highway to maintain a consistent speed. This helps to optimize fuel efficiency by preventing unnecessary speed fluctuations. Try to keep your speed at or below the posted speed limit, as fuel economy tends to decrease significantly at higher speeds due to increased wind resistance.

Ensure that your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended pressure listed on the sticker inside the driver’s side door. Consider using the vehicle’s built-in tire pressure monitoring system for convenience.

Minimize idling. If you’re stopped for more than a minute, turn off the engine. Modern engines are designed to restart quickly, and idling wastes fuel. This is especially important in urban environments with frequent stops.

Keep up with regular maintenance. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended maintenance schedule for oil changes, air filter replacement, and tune-ups. A clogged air filter or old spark plugs can negatively impact fuel economy.

The 2023 GMC Yukon XL 2WD 6.2L is not for those very focused on saving fuel. It’s for those who demand space, power, and capability, and are willing to manage the fuel costs associated with it. The experience behind the wheel, the commanding view, the smooth power delivery, and the sheer size, is prioritized over saving a few dollars at the pump.