16 MPG combined is a stark reality for anyone considering the 2021 GMC Yukon XL 2WD with the 6.2L V8. This isn’t a vehicle purchased for saving money on fuel. It’s the choice of families with multiple children, those who regularly tow boats or campers, and individuals prioritizing vast interior space and strong performance above all else. Fuel economy is a secondary concern; capability and comfort are important.

City and highway performance

The EPA estimates provide a glimpse into the Yukon XL’s fuel consumption in different driving environments. 14 MPG in the city reflects the engine’s considerable displacement and the vehicle’s weight during stop-and-go situations. The 20 MPG highway rating is more acceptable, and achievable during steady-state cruising. However, aggressive acceleration or headwinds can quickly diminish this figure. The 10-speed automatic transmission helps optimize fuel efficiency at higher speeds, but it can’t completely overcome the inherent thirst of a large displacement V8 in a vehicle of this size.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,600 for the 2021 GMC Yukon XL 2WD 6.2L V8. This figure is based on driving 15,000 miles per year, using a blend of city and highway driving, with fuel prices reflecting the national average. Anyone exceeding 15,000 miles annually, or primarily driving in city conditions, should expect to spend considerably more. Fuel prices also vary widely across the country, so your individual cost may be significantly higher or lower than the EPA estimate.

Real-world expectations

While the EPA provides standardized testing data, real-world fuel economy can vary based on driving habits, terrain, and cargo weight. Owners of the Yukon XL 2WD 6.2L often report figures slightly below the EPA estimates, especially in mixed driving conditions. Towing, even occasionally, will drastically reduce fuel economy, potentially dropping into the single digits. Maintaining proper tire inflation and performing regular maintenance can help to stay closer to the EPA figures, but managing expectations is crucial. This Yukon XL is a tool designed for specific purposes, and fuel efficiency is less of a priority for its target buyer.

How it compares

The fuel economy of the 2021 GMC Yukon XL 2WD 6.2L is worse than some competitors and slightly worse than others. For example, a Ford Expedition Max with the standard EcoBoost engine achieves a combined MPG of 19, making it a more efficient choice. Even a Chevrolet Suburban with the 5.3L V8 manages approximately 17 MPG combined. The Jeep Wagoneer, while offering similar space, hovers around 18 MPG combined. Buyers who prioritize fuel economy above all else would likely consider these alternatives, or exploring the diesel variants (if available) for improved efficiency. Those who appreciate the responsiveness and sound of the 6.2L, however, often accept the fuel consumption penalty as part of the ownership experience. If you are interested in viewing YUKON MPG across all years, be sure to check out our other information.

Tips to maximize efficiency

While the 2021 GMC Yukon XL 2WD 6.2L isn’t known for its excellent fuel economy, there are steps drivers can take to improve efficiency. Avoid aggressive acceleration and hard braking. The 6.2L V8 delivers ample power, but using it frequently will quickly deplete the fuel tank. Anticipate traffic flow and maintain a steady speed when possible.

Ensure tires are properly inflated to the recommended pressure, which can be found on the doorjamb. Underinflated tires increase rolling resistance and decrease fuel economy. Regular tire pressure checks are crucial, especially during temperature fluctuations.

Minimize unnecessary weight. Remove any cargo that is not essential, as extra weight directly impacts fuel consumption. The Yukon XL is designed to haul heavy loads, but driving empty with excess weight is wasteful. Regularly check the air filter and replace if dirty so the engine burns fuel more efficiently.

When possible, use cruise control on the highway to maintain a consistent speed and prevent unnecessary acceleration. The 10-speed automatic transmission will optimize gear selection for fuel efficiency, and cruise control helps to maintain a steady state.

Consider using a fuel additive designed to clean fuel injectors and improve combustion. A clean fuel system helps the engine run more efficiently and can slightly improve fuel economy. Check the owner’s manual or speak to a certified mechanic about recommended fuel additives.

For everything you need to know about fuel economy for the GMC brand, browse all Gmc fuel economy data, here.