16 MPG combined isn’t going to win any awards, but it’s the price of admission for the 2024 Chevrolet Suburban 4WD with the 5.3L V8, a vehicle purpose-built to haul large families and their cargo across vast distances, regardless of the weather. This isn’t a crossover pretending to be an SUV; this is the real deal, a body-on-frame behemoth engineered for situations where a minivan simply wouldn’t cut it. Its buyers, parents of large families, towing enthusiasts, and those who live in areas demanding serious winter capability, understand this compromise and accept it.

City and highway performance

The EPA estimates the Suburban 4WD 5.3L V8 at 15 MPG in the city and 18 MPG on the highway. That spread reflects the engine’s workload. Stop-and-go driving in urban environments forces the engine to constantly accelerate from a standstill, working against the Suburban’s considerable mass. Out on the open road, however, the 10-speed automatic transmission can settle into a more fuel-efficient gear, and the engine benefits from less frequent acceleration. While 18 MPG doesn’t sound spectacular, it’s arguably more palatable on long road trips, the very scenario for which the Suburban excels. Drivers spending most of their time in urban areas should expect to see figures closer to the 15 MPG estimate. See SUBURBAN MPG across all years.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2024 Chevrolet Suburban 4WD 5.3L 8-cyl at $2,750. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this is just an estimate, and your actual fuel costs will vary depending on your driving habits, the type of driving you do (city vs. highway), and local fuel prices. Drivers who frequently tow or spend a significant amount of time in heavy traffic will undoubtedly see a higher annual fuel bill, while those who primarily use the Suburban for long highway journeys might fare slightly better.

Real-world expectations

While the EPA estimates provide a useful baseline, real-world fuel economy can vary. The Suburban’s weight, aerodynamic profile, and the driver’s right foot all play a significant role. Aggressive acceleration, frequent braking, and high speeds will all negatively impact fuel efficiency. Conversely, gentle acceleration, anticipating traffic flow, and maintaining a steady speed on the highway can help drivers achieve figures closer to the EPA estimates. Load also matters; a Suburban packed with passengers and luggage will consume more fuel than one carrying just the driver.

How it compares

The Suburban exists in a space with few direct competitors, but buyers might cross-shop it against other large SUVs. The Ford Expedition 4×4 with its 3.5L EcoBoost V6 achieves a slightly better 19 MPG combined, offering a marginal improvement. The Toyota Sequoia 4×4, redesigned with a hybrid powertrain, boasts a more competitive 20 MPG combined, making it a more fuel-efficient option in this category. The Jeep Wagoneer 4×4 with its standard 3.0L Hurricane engine delivers a comparable 17 MPG combined. While these alternatives may offer slightly better fuel economy, Suburban buyers often prioritize its specific blend of space, towing capacity, and proven V8 power. For drivers concerned about fuel economy across the Chevrolet lineup, see all Chevrolet fuel economy data.

Tips to maximize efficiency

The most immediate way to improve fuel economy in the Suburban is to adopt a smooth and consistent driving style. Avoid abrupt acceleration and braking, and maintain a steady speed whenever possible. Anticipate traffic flow and ease off the accelerator early to coast to a stop, minimizing the need for hard braking.

Tire pressure is another important factor. Ensure your tires are inflated to the recommended pressure, as underinflated tires increase rolling resistance and decrease fuel efficiency. Check your tire pressure regularly, especially during temperature changes that can affect pressure.

Minimize unnecessary weight. The more weight the Suburban carries, the harder the engine has to work. Remove any unnecessary items from the vehicle, especially heavy items stored in the cargo area or roof rack. Regular maintenance, including timely oil changes and air filter replacements, ensures that the engine is running at peak efficiency.

Use cruise control on the highway. Cruise control helps maintain a constant speed, which can improve fuel economy on long journeys. However, be mindful of using cruise control in hilly terrain, as it can sometimes lead to unnecessary downshifts and higher fuel consumption.

Consider the drive mode if your Suburban is equipped with selectable drive modes. Some models offer an “Eco” mode that optimizes engine and transmission settings for improved fuel economy. While this may slightly reduce performance, it can make a noticeable difference on longer trips if you’re willing to prioritize efficiency.