44 MPG combined is a remarkable figure for a mid-size luxury sedan, and it’s the key reason why the 2020 Lexus ES 300h draws such strong interest from buyers who prioritize efficiency without sacrificing comfort or refinement. This isn’t a sports sedan; it’s a plush, quiet cruiser designed for effortless daily driving and long-distance comfort, and its hybrid powertrain delivers exceptional fuel economy for that purpose.

City and highway performance

The EPA numbers for the 2020 Lexus ES 300h are surprisingly consistent across driving environments, with 43 MPG in the city and 44 MPG on the highway. This reflects the strengths of the hybrid system. In urban settings, the electric motor handles much of the low-speed acceleration and stop-and-go traffic, minimizing gasoline consumption. On the highway, the Atkinson-cycle engine and efficient aerodynamics work together to maintain excellent fuel economy. The integration of the electric motor and gasoline engine is one of the hallmarks of Lexus hybrid technology, and it’s clearly on display here.

Annual fuel cost

According to the EPA, the estimated annual fuel cost for the 2020 Lexus ES 300h is $1,000. This calculation is based on driving 15,000 miles per year and using national average fuel prices. These figures will vary depending on individual driving habits and local gasoline prices, but they provide a useful benchmark for comparing the ES 300h to other vehicles in its class. At just $1,000 per year, the ES 300h represents a significant savings over comparable gas-only luxury sedans.

Real-world expectations

While EPA estimates provide a standardized comparison, real-world fuel economy often differs. However, the ES 300h is known to perform very close to its EPA ratings. Some drivers report achieving figures even higher than the official numbers, particularly in city driving where the hybrid system is most effective. Consistent and conservative driving habits can easily push the car beyond the advertised MPG.

How it compares

The 2020 Lexus ES 300h stands out against its segment rivals in fuel economy. The BMW 530e, for example, manages only 29 MPG combined, although it offers a plug-in hybrid option with limited electric-only range. The Acura TLX, with its base 2.4L engine, achieves around 28 MPG combined, but lacks the hybrid’s smoothness and low-end torque. Even the efficient Mercedes-Benz C300 only manages around 28 MPG combined. For buyers prioritizing fuel efficiency in a luxury sedan, a review of ES MPG across all years makes it clear why the 300h is often the only option. Even looking across the brand at all Lexus fuel economy data, the ES 300h shines.

Tips to maximize efficiency

Use the “EV” mode for short trips at low speeds. This forces the car to run solely on electric power, eliminating gasoline consumption for those brief errands. Note that the EV mode availability is dependent on battery charge and driving conditions. Use it strategically for the most impact.

Gentle acceleration and braking are important for maximizing fuel economy in any hybrid vehicle. Avoid aggressive starts and hard braking, as these actions waste energy. The ES 300h’s regenerative braking system helps recapture energy during deceleration, but smoother driving enhances this effect.

Maintain properly inflated tires. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended levels specified on the doorjamb sticker.

Reduce unnecessary weight in the vehicle. Excess cargo adds to the car’s load, requiring more energy to accelerate and maintain speed. Remove any items from the trunk or backseat that are not essential for your journey.

Use cruise control on the highway and stick to a consistent speed. Varying your speed constantly consumes additional fuel. Cruise control helps maintain a steady pace, optimizing fuel efficiency during long drives.