The 2025 Chevrolet Suburban 4WD with the 6.2L V8 gets an official EPA fuel economy rating of 16 MPG combined. Some might find this figure shocking, but it’s generally accepted as a cost of owning a full-size, truck-based SUV. This isn’t a vehicle purchased for its thriftiness; it’s bought for its unmatched passenger and cargo capacity, its strong towing capabilities, and its sheer presence on the road. The Suburban 6.2L caters to a very specific buyer: large families, those who frequently tow boats or trailers, and others who simply need the maximum possible interior volume regardless of the fuel bill.

City and highway performance

The EPA estimates are 14 MPG in the city and 18 MPG on the highway for the 2025 Chevrolet Suburban 4WD with the 6.2L V8. These figures show what it takes to move nearly three tons of SUV through stop-and-go traffic and maintain highway speeds. The city MPG is lower because the engine works harder to accelerate from a standstill repeatedly. The highway figure, while higher, is still modest, as aerodynamic drag begins to affect it at higher speeds. The 10-speed automatic transmission tries its best to keep the engine in its most efficient range, but the size and weight of the Suburban determine the fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 Chevrolet Suburban 4WD 6.2L at $3,600. This calculation is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway, using national average fuel prices. Remember that this is an estimate, and your actual fuel costs will vary depending on your driving habits, local fuel prices, and how often you use the vehicle. If you frequently tow heavy loads or drive primarily in stop-and-go traffic, expect your annual fuel expenses to exceed the EPA’s estimate. However, if you do mostly long highway trips, you might see a slightly lower number. This $3,600 figure is a crucial part of the ownership equation for Suburban buyers.

Real-world expectations

While the EPA numbers provide a useful benchmark, real-world fuel economy can vary. Drivers who accelerate smoothly and anticipate traffic conditions may see figures closer to the EPA estimates, or even slightly better. Aggressive driving, frequent short trips, and extensive idling will lower the MPG. The Suburban 6.2L also benefits from careful maintenance. Keeping tires properly inflated and ensuring the engine is regularly serviced can positively impact fuel efficiency. Payload also plays a big part, so keep the car empty of non-essentials between trips.

How it compares

The 2025 Chevrolet Suburban 4WD 6.2L’s fuel economy sits about where you might expect compared to its competitors. The Ford Expedition Max with its turbocharged 3.5L EcoBoost V6 typically achieves slightly better numbers, around 17 MPG combined, but it lacks the raw horsepower of the 6.2L. The GMC Yukon XL Denali, mechanically similar to the Suburban but often positioned as a slightly more premium offering, posts similar MPG figures. The Nissan Armada, with its standard 5.6L V8, is often in the same ballpark. Buyers considering the Suburban often cross-shop these models, weighing factors like fuel economy against towing capacity, interior space, and overall cost.

Tips to maximize efficiency

One strategy is to use the Suburban’s cruise control system on the highway to maintain a consistent speed and minimize unnecessary acceleration and deceleration, which can significantly impact fuel consumption. Avoid aggressive driving habits such as hard acceleration and braking. Smooth, deliberate inputs will help the engine operate more efficiently and conserve fuel.

Regular maintenance is important for optimal fuel economy. Keep your tires properly inflated to the recommended pressure and ensure that your engine is tuned and serviced according to the manufacturer’s recommendations. A well-maintained engine and properly inflated tires reduce rolling resistance and improve overall efficiency.

When possible, combine trips to reduce the number of cold starts, as cold starts typically consume more fuel. Planning your errands and routes efficiently can minimize the number of times you need to start the engine, especially if you are driving from one location to another with a relatively short distance.

Keep the Suburban as light as possible by removing unnecessary cargo. The more weight the engine needs to haul, the more fuel it will consume. Remove any items that you don’t need on a regular basis to reduce the overall weight of the vehicle and improve gas mileage.

Consider using a less aggressive tire. The factory tires are often a good compromise between grip and fuel economy, but there might be better options if you want to save fuel at the expense of ultimate grip. Talk to a tire specialist for recommendations.

For more information, browse all Chevrolet fuel economy data including historical models. Owners may also want to explore past SUBURBAN MPG across all years.