17 MPG combined isn’t going to win any awards, but it’s the reality for the 2025 Chevrolet Suburban 2WD with the 5.3L V8. This isn’t a vehicle purchased for its fuel efficiency; it’s purchased for its sheer size, towing capability, and the ability to haul a small town plus all their gear. Buyers choosing this Suburban understand and accept the trade-off. They need its specific skillset, and they’re prepared to pay for it at the pump.

City and highway performance

The EPA estimates suggest 15 MPG in the city and 20 MPG on the highway. The city figure reflects the Suburban’s considerable weight and the stop-and-go nature of urban driving, where the engine constantly works to get this large vehicle moving. On the highway, the 10-speed automatic transmission helps to keep the engine in its optimal range, allowing for slightly better fuel economy, especially at a steady cruising speed. However, even on the open road, the Suburban’s size and aerodynamic profile prevent it from achieving truly impressive gas mileage.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,600 for the 2025 Chevrolet Suburban 2WD 5.3L 8-cyl. 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, and the price of gasoline in your area. Drivers who frequently tow or spend a lot of time in congested traffic may find themselves spending considerably more.

Real-world expectations

The EPA provides a standardized estimate, but real-world fuel economy often differs. Suburban owners frequently report numbers close to the EPA estimates, but heavily loaded vehicles or aggressive driving can easily drop the mileage into the low teens. Patient highway driving can sometimes nudge the numbers slightly higher. Expect a range, and factor in your personal driving style when budgeting for fuel.

How it compares

Compared to its direct competitors, the 2025 Chevrolet Suburban 2WD 5.3L 8-cyl lands roughly where you’d expect. The Ford Expedition 2WD with its EcoBoost V6 often achieves slightly better fuel economy, around 17 MPG combined, due to its smaller engine and lighter weight. The Nissan Armada, with its naturally aspirated V8, typically lags behind both the Suburban and Expedition in fuel efficiency, often struggling to reach 16 MPG combined. Buyers cross-shopping these vehicles understand that even a 1 or 2 MPG difference can translate to hundreds of dollars at the pump over the course of a year, but the Suburban’s brand loyalty and established reputation continue to attract a loyal customer base. For a more in-depth look at the SUBURBAN MPG across all years, be sure to check out our model-specific page.

Tips to maximize efficiency

Gentle acceleration is key. Avoid hard starts and sudden stops, as these actions burn significantly more fuel in a large SUV like the Suburban. Anticipate traffic flow and try to maintain a steady speed whenever possible.

Proper tire inflation makes a difference. Check your tire pressure regularly and inflate them to the manufacturer’s recommended specifications. Underinflated tires create more rolling resistance, which decreases fuel economy.

Minimize idling. If you’re stopped for more than a minute, turn off the engine. Excessive idling consumes fuel without moving you anywhere. This is especially important in urban environments with frequent traffic lights.

Consider using cruise control on the highway. Cruise control helps maintain a consistent speed, which can optimize fuel efficiency on long trips. Just be sure to disengage it in heavy traffic or during inclement weather.

Reduce your cargo load when possible. Extra weight increases the engine’s workload, leading to lower fuel economy. Remove any unnecessary items from the vehicle to lighten the load.

Interested in seeing all Chevrolet fuel economy data? Consider checking out the rest of our site.