24 MPG combined is the headline for the 2026 Toyota Grand Highlander LE/XLE, 2.4L 4-cylinder, an undeniably solid figure for a substantial, family-oriented three-row SUV engineered to haul a crowd and their gear in comfort. This isn’t a lithe sports coupe, nor is it a hybrid, but rather a dedicated people-mover designed for practicality and the rigors of family life.

City and highway performance

Looking at the EPA figures reveals 21 MPG in the city and 28 MPG on the highway for the Grand Highlander LE/XLE equipped with the 2.4L 4-cylinder engine and its standard automatic (S8) transmission. The city figure, at 21 MPG, is particularly good for a vehicle of this size. It means congested school runs, stop-and-go commuting, and general urban meandering won’t punish your wallet unduly. Toyota has clearly engineered this powertrain to deliver respectable efficiency where most families spend most of their driving time. On the open road, the 28 MPG highway rating showcases the 2.4L engine’s ability to settle into an efficient cruise. This is where the Grand Highlander truly shines for those planning longer road trips or regular highway commutes, offering a noticeable advantage over thirstier competitors.

Annual fuel cost

The EPA estimates an annual fuel cost of $1,800 for the 2026 Toyota Grand Highlander LE/XLE 2.4L 4-cylinder. This figure is based on driving 15,000 miles per year, split evenly between city and highway driving, and using national average fuel prices, which the EPA updates regularly. For a large family SUV, this translates into a highly manageable running cost. $1,800 a year for fuel is a predictable and reasonable expense for many families when amortized over 12 months. It provides transparency and helps budget-conscious buyers understand the long-term financial commitment beyond the purchase price. This predictability is a key selling point for a segment where practical ownership costs often dictate purchasing decisions. You can view all Toyota fuel economy data, including information on other models.

Real-world expectations

Drivers of the Grand Highlander LE/XLE with the 2.4L 4-cylinder engine can realistically expect to achieve figures very close to the 24 MPG combined rating. Toyota’s modern naturally aspirated and turbocharged engines, coupled with well-calibrated automatic transmissions, have a strong track record of mirroring EPA numbers in real-world driving. The vehicle’s mission is not about exhilarating sprints but rather smooth, composed, and efficient hauling. Those who drive gently, anticipate traffic, and maintain consistent speeds on the highway will likely see numbers at or even slightly above the EPA estimates. Conversely, aggressive acceleration, heavy loads, frequent short trips in extreme weather, or prolonged idling will naturally bring the numbers down. The Grand Highlander’s character encourages a relaxed driving style, which inherently contributes to better fuel economy.

How it compares

The 2026 Toyota Grand Highlander LE/XLE 2.4L 4-cylinder carves out a competitive niche with its 24 MPG combined figure. Consider key rivals: The Kia Telluride and Hyundai Palisade, often equipped with 3.8L V6 engines, typically achieve around 21 MPG combined. The Honda Pilot, with its 3.5L V6, also hovers around 21 MPG combined. Ford’s Explorer with its 2.3L EcoBoost four-cylinder engine can match the Grand Highlander at 24 MPG combined, but often requires premium fuel for optimal performance. The Mazda CX-90 Turbo, another new competitor with a turbocharged inline-six, comes in at 24 MPG combined for its standard boost model. Toyota has deliberately positioned the Grand Highlander’s 2.4L four-cylinder as a smart, efficient choice without resorting to complex hybrid powertrains in this specific trim. It appeals to buyers who prioritize proven internal combustion efficiency and a lower entry price point over the added complexity and cost of a hybrid. For a detailed comparison of models, you can check GRAND MPG across all years.

Tips to maximize efficiency

Maintain consistent highway speeds. The Grand Highlander’s 2.4L engine is most efficient when cruising in its highest gears on the open road. Avoiding rapid acceleration and deceleration on the highway can significantly boost your 28 MPG rating.

Anticipate traffic conditions. The weight of the Grand Highlander means it takes more energy to get moving. Smooth and gradual acceleration from a stop, along with anticipating red lights and coasting when safe, will help preserve that 21 MPG city rating.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder. Check your tire pressure regularly, especially before long trips, to maintain optimal fuel economy and safety.

Avoid carrying unnecessary weight. Every extra pound the Grand Highlander carries impacts its fuel economy. Remove any non-essential items from the cargo area, especially heavy ones, to lighten the load on the engine.

Use the automatic transmission’s efficiency. The Grand Highlander’s S8 automatic transmission is designed to keep the engine in its most efficient RPM range. Drive in “D” mode for most situations and allow the transmission to do its job, minimizing manual shifting unless necessary for specific driving conditions.