25 MPG combined isn’t going to set any efficiency records, but in the realm of full-size, all-wheel drive luxury sedans, the 2022 Lexus LS 500h occupies a unique space where quietness and advanced technology take precedence over fuel savings. This car is for the executive who values a supremely comfortable and quiet commute, who wants a smooth blend of gasoline and electric power to waft them to their destination, and who understands that a small sacrifice is necessary to achieve that unparalleled Lexus experience.

City and highway performance

The EPA estimates 22 MPG in the city and 29 MPG on the highway for the 2022 Lexus LS 500h AWD. Those figures reflect the complexities of its hybrid system working with a 3.5L V6 engine. In urban environments, the electric motor shoulders more of the load, providing silent and smooth initial acceleration. However, frequent stop-and-go driving will inevitably reduce the overall average. On the open road, the LS 500h settles into a more efficient cruising rhythm, using the gasoline engine to maintain speed while the electric motor assists during passing maneuvers. The 29 MPG highway figure shows the car’s ability to cover long distances with relatively minimal fuel consumption, a key consideration for those who regularly travel for business or pleasure.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2022 Lexus LS 500h AWD to be $2,300. This figure is based on driving 15,000 miles per year and using national average fuel prices. Of course, your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. However, this $2,300 estimate provides a useful benchmark for comparing the LS 500h to other vehicles in its class, and understanding the ongoing cost of ownership. While not inexpensive, it’s a consideration for the buyer valuing the complete Lexus experience above rock-bottom running costs. The LS buyer should see the $2,300 cost as as piece of mind cost, when weighed against what they could spend on vehicle maintenance for a competitor.

Real-world expectations

While the EPA estimates offer a baseline, real-world MPG can vary significantly. Aggressive driving, frequent short trips, and prolonged idling will all negatively impact fuel economy. Conversely, adopting a more relaxed driving style, minimizing unnecessary acceleration, and maximizing the use of regenerative braking can help you achieve figures closer to, or even slightly above, the EPA estimates. The LS 500h buyer appreciates refinement above all, so they will not be surprised that city driving conditions will see fuel economy decline slightly. Be cognizant of energy and mileage data, and take advantage of the efficiency data within the driver information screens.

How it compares

Compared to its competitors, the 2022 Lexus LS 500h AWD offers a mixed bag in terms of fuel efficiency. The BMW 745e xDrive, another plug-in hybrid luxury sedan, achieves a combined rating of 22 MPG when operating as a standard hybrid, suggesting it might be the better hybrid around-town performer, along with greater MPG it is also a plug-in hybrid. The Mercedes-Benz S560 4MATIC, with its powerful V8 engine, struggles to achieve even 20 MPG combined. The non-hybrid LS 500 AWD lands at an atrocious 21 combined MPG for comparison among its own family. For those seeking a more efficient alternative within the Lexus family, explore all Lexus fuel economy data. Understanding how the LS 500h stacks up against similar vehicles is critical for the buyer who prioritizes a balance of luxury, performance, and fuel economy.

Tips to maximize efficiency

Optimize your driving style to maximize the efficiency of the hybrid powertrain. Gentle acceleration and consistent speeds allow the electric motor to contribute more significantly, reducing reliance on the gasoline engine. Anticipate traffic flow and use the regenerative braking to recapture energy and minimize wear on the brake pads.

Pay attention to tire pressure. Properly inflated tires reduce rolling resistance and improve fuel economy. Check your tire pressure regularly and inflate your tires to the recommended pressure listed on the driver’s side door jamb. This simple step can make a noticeable difference over time.

Minimize unnecessary weight. Remove any unnecessary items from the trunk and cabin. Excess weight forces the engine to work harder, which reduces fuel economy. Less weight means the electric motor can do more of the work, which is key to the LS 500h’s fuel-sipping purpose.

Use the different driving modes strategically. Select the “Eco” mode for everyday driving to prioritize fuel efficiency. This mode adjusts throttle response and climate control settings to conserve energy. Choosing the LS mode from time to time provides the Lexus MPG optimization along with greater performance.

Stay on top of scheduled maintenance. Regular maintenance, including oil changes and air filter replacements, ensures that your engine is running efficiently. A well-maintained engine consumes less fuel and pollutes less. If looking for LS MPG across all years the cost of maintaining the vehicle should be factored into the ownership.