16 MPG combined isn’t going to win any awards, but for the 2023 GMC Yukon XL 4WD with the 6.2L V8, it’s simply the cost of doing business. This is a truck for those who prioritize space, towing capability, and a commanding presence above all else. Fuel economy is a minor concern at best for the family that needs to haul eight passengers and mountains of gear, or the business owner who regularly tows equipment. This Yukon XL isn’t about sipping fuel; it’s about tackling big jobs with confidence and comfort.

City and highway performance

The EPA estimates the Yukon XL 4WD 6.2L achieves 14 MPG in the city and 18 MPG on the highway. These figures reflect the inherent compromise in driving a large, body-on-frame SUV. The city number is particularly affected by stop-and-go traffic, where the Yukon’s considerable weight requires more energy to accelerate repeatedly. The highway figure, while better, is still indicative of a vehicle pushing a large frontal area through the air at higher speeds. Expect the cylinder deactivation system to engage frequently on flat highway stretches to help reach that 18 MPG number, though any significant hills or headwinds will drop the average quickly. These figures, while seemingly low compared to smaller crossovers, are the trade-off for the Yukon XL’s capabilities.

Annual fuel cost

Based on the EPA’s estimates, the annual fuel cost for the 2023 GMC Yukon XL 4WD 6.2L is pegged at $3,600. This calculation assumes 15,000 miles of driving per year, using a national average fuel price. Your actual fuel costs will vary depending on your driving habits, location, and fluctuating gas prices. Keep in mind that this figure is a snapshot based on specific assumptions; frequent towing, aggressive driving, or living in an area with higher fuel costs will significantly increase your expenditure.

Real-world expectations

While the EPA figures provide a baseline, real-world fuel economy often differs. Owners of the Yukon XL 6.2L frequently report averages that hover around the EPA estimates, but heavy use of 4WD, frequent short trips, and a lead foot can easily push the average down. Conversely, careful highway driving with minimal cargo can sometimes yield slightly better results. It’s crucial to understand that the 6.2L V8 rewards a gentle driving style with marginally improved fuel economy; however, the temptation to exploit its power is ever-present, and that comes at a cost.

How it compares

Competition in the full-size SUV segment is fierce. The Ford Expedition Max with its 3.5L EcoBoost V6 generally achieves slightly better fuel economy, around 17 MPG combined. The Chevrolet Suburban, mechanically similar to the Yukon XL, posts near-identical fuel economy numbers with its available 6.2L V8. Stepping up to the Cadillac Escalade ESV, which shares the same platform and engine options, yields similar results. For those considering alternatives, the Nissan Armada lags slightly behind with around 15 MPG Combined. The key takeaway is that within this class, fuel economy differences are often marginal. The Yukon XL buyer likely isn’t cross-shopping against smaller, more efficient vehicles; they’re comparing within its class, and the Yukon XL’s fuel consumption is par for the course across all Gmc fuel economy data.

Tips to maximize efficiency

Optimize your tire pressure according to the manufacturer’s recommendation, found on the doorjamb sticker. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. This is especially critical on a heavy vehicle like the Yukon XL. Regular tire pressure checks can make a noticeable difference over time.

Avoid aggressive acceleration and braking. The 6.2L V8 is capable of impressive bursts of speed, but each hard acceleration event burns a significant amount of fuel. Smooth, gradual acceleration and anticipating traffic flow can significantly reduce fuel consumption, especially in city driving. Lighten the load by removing unnecessary cargo. Every extra pound adds to the vehicle’s weight, requiring more energy to move. Clearing out infrequently used items from the cargo area can help improve fuel economy, especially on longer trips.

Consider using the Yukon’s drive mode selector. Some models offer an “Eco” mode that adjusts throttle response and transmission shift points to prioritize fuel efficiency. While it might slightly reduce performance, it can be beneficial for highway cruising or situations where maximum power isn’t needed. Keep up with regular maintenance. A well-maintained engine runs more efficiently. Ensure that you follow the recommended service schedule for oil changes, air filter replacements, and spark plug maintenance. Neglecting these tasks can negatively impact fuel economy and could void the warranty.

Think about where you’re driving the YUKON MPG across all years. A lot of people who buy this truck do a fair amount of long-distance family road trips. So it might matter less if they get truly terrible mileage around town, because gas is only a single-digit percentage of the cost of a big family vacation. If you’re towing, remember that it will affect your fuel mileage a lot. So try to plan longer trips or combine trips, rather than hitching up the trailer for short runs.