The 2021 Chevrolet Tahoe 4WD, equipped with the reliable 5.3L V8, gets 18 MPG combined. This isn’t a Prius; it’s a full-size, truck-based SUV for families needing space, towing, and off-road capability. The fuel economy isn’t award-winning, but it’s what you can expect for the utility the Tahoe provides.

City and highway performance

EPA estimates show how the Tahoe performs in different conditions. In the city, with frequent stops, it gets 16 MPG. The Tahoe’s weight and large engine impact its city mileage. On the highway, the 10-speed automatic transmission allows the engine to cruise at a more efficient RPM, resulting in 20 MPG. These figures reflect its capabilities: taking kids to school, and long road trips pulling a camper.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Chevrolet Tahoe 4WD 5.3L V8 at $2,450. This is based on 15,000 miles per year, with 55% city and 45% highway driving, using national average fuel prices. Your actual costs will vary based on your driving, local fuel prices, and 4WD usage.

Real-world expectations

EPA estimates are a good starting point, but real-world MPG can differ. Owners have reported achieving the EPA’s 20 MPG highway rating on long, flat roads with conservative driving. Expect lower numbers when towing, driving in hills, or using the Tahoe’s acceleration. The Tahoe’s weight also impacts fuel economy, regardless of how you drive. The more passengers and cargo, the harder the engine works, lowering your MPG. For Tahoe buyers, the occasional fuel economy tradeoff is worth the safety and carrying capacity.

How it compares

The 2021 Tahoe 4WD’s fuel economy is average for its class. The Ford Expedition 4×4 with its 3.5L EcoBoost V6 achieves a slightly better 19 MPG combined. A GMC Yukon 4WD with the same 5.3L V8 has similar figures, demonstrating their nearly identical design. The Nissan Armada, though often cheaper, only gets 14 MPG combined. For buyers prioritizing fuel efficiency, the previous-generation Tahoe Hybrid, though harder to find used, offers better MPG. If good MPG is a must-have for your full sized SUV, you will want to compare TAHOE MPG across all years before making a purchase. You can also view our all Chevrolet fuel economy data.

Tips to maximize efficiency

Avoid fast acceleration. It’s important in a large SUV like the Tahoe. The 5.3L V8 has plenty of power, but using it burns fuel. Accelerate gently and coast when you can to save gas.

Maintain correct tire inflation. Regularly check your tire pressure and inflate to the recommended level on the door jamb sticker. Underinflated tires increase rolling resistance, which hurts fuel economy. This is even more important on the heavy Tahoe.

Only use four-wheel drive when needed for slippery or off-road conditions. Driving in 4WD on dry pavement significantly lowers fuel economy because of the increased friction and driveline load.

Remove extra weight. Carrying extra cargo adds weight, making the engine work harder. Remove unnecessary items from the Tahoe to improve fuel efficiency. This is important when you’re not using it for hauling or towing.

Consider cruise control on the highway. Cruise control maintains speed, which can improve fuel economy on long trips. Avoid using cruise control in hilly areas, as the transmission may downshift often, negating fuel savings.