For the 2018 Lexus ES 300h, 40 MPG combined is a key part of the car’s appeal. It defines its mission as a comfortable, quiet, and efficient mid-size luxury sedan. Lexus ES buyers typically prioritize reliability and a relaxed driving experience. They find this fuel economy not just acceptable, but actively desirable. It’s a conscious trade-off: outright sporting thrills are sacrificed for exceptional comfort and lower running costs.

City and highway performance

The EPA’s figures reveal a consistent performance across driving environments, with 40 MPG in the city and 39 MPG on the highway. This near-identical result shows the effectiveness of the hybrid powertrain. The electric motor assists the gasoline engine during acceleration and low-speed maneuvers, allowing the ES 300h to spend more time running on electric power alone in stop-and-go city traffic. On the highway, the system blends gasoline and electric power, maintaining efficiency even at higher speeds. The 156 horsepower 2.5-liter four-cylinder engine won’t win any drag races, but the electric motor provides instant torque, contributing to smooth and confident acceleration in both urban and long-distance driving. The automatic transmission (AV-S6) is tuned for efficiency and smooth transitions.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Lexus ES 300h at $1,100. This figure is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price at the time of calculation. For drivers who clock fewer miles or live in areas with lower fuel costs, the actual annual expense could be less. The low fuel cost is a selling point, especially for those accustomed to paying far more to fuel other luxury cars. This could be the deciding factor for buyers also considering a new ES; ES MPG across all years is something many buyers will investigate.

Real-world expectations

The EPA estimates provide a useful benchmark, but real-world fuel economy can vary depending on driving habits, traffic conditions, and climate. Drivers who frequently accelerate hard or consistently drive at high speeds may see lower MPG numbers. However, those who adopt a more relaxed driving style and prioritize smooth acceleration and braking can often match or exceed the EPA estimates.

Regular maintenance, including proper tire inflation and timely oil changes, also plays a role in maintaining good fuel efficiency. The ES 300h encourages a smoother, more deliberate driving style, which translates to better fuel economy. Consider exploring all Lexus fuel economy data to help understand the brand’s overall efficiency.

How it compares

The 2018 Lexus ES 300h’s fuel economy is excellent for its class. The Acura TLX, for example, gets around 27 MPG combined with its four-cylinder engine and 25 MPG combined with its V6. The BMW 530i achieves around 27 MPG combined. These other luxury sedans may offer more performance, but they can’t match the ES 300h’s fuel efficiency. Even other hybrid variants of similar vehicles fall short; the Lincoln MKZ Hybrid achieved only 41 MPG combined. These differences matter to the Lexus buyer because they are choosing efficiency over sheer performance and valuing the cost savings and less gas that the ES 300h provides.

Tips to maximize efficiency

Use the ES 300h’s regenerative braking system by anticipating stops and easing off the accelerator early. This lets the system recover energy and recharge the battery and is more efficient than braking hard at the last moment.

Pay attention to the car’s information displays. The ES 300h provides real-time feedback on your driving efficiency, indicating when you’re using electric power and when the gasoline engine is engaged. Use this information to adjust your driving style and get better gas mileage.

Reduce use of accessories that draw significant power, such as the air conditioning and heated seats. While these features enhance comfort, they also increase the load on the engine and reduce fuel efficiency. Use them carefully, especially during short trips.

Avoid aggressive acceleration and high speeds. The ES 300h is designed for smooth, relaxed cruising, not spirited driving. Gentle acceleration and maintaining a consistent speed are key to maximizing fuel economy.

Make sure your tires are properly inflated to the recommended pressure. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure regularly.