The 2024 Lexus LC 500 Convertible offers 18 MPG combined. This is due to the design, and not a flaw. This car prioritizes experience over economy. Buyers seeking the best MPG should see all Lexus fuel economy data. The LC 500 Convertible appeals to those who prioritize the sound, the style, and the thrill of a naturally aspirated V8 over saving money on gas. The car delivers an unfiltered driving experience, which requires a specific engine.

City and highway performance

The EPA estimates the LC 500 Convertible gets 15 MPG in the city and 25 MPG on the highway. These numbers reflect the car’s design. The city MPG is lower because of the engine’s size and the car’s weight. Stop-and-go traffic keeps the 5.0-liter V8 from running efficiently. The highway MPG is respectable because of the 10-speed automatic transmission, which lets the engine run at lower RPMs when high performance isn’t needed. However, aggressive driving will reduce those highway MPG gains quickly.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Lexus LC 500 Convertible at $3,200. This number is based on driving 15,000 miles per year and using the national average fuel price. This is a large expense. It places the LC 500 Convertible among the vehicles that use the most gas. Consider the cost part of owning a performance vehicle.

Real-world expectations

The EPA numbers provide a starting point. Real-world fuel economy will change depending on driving style and conditions. Expect the 15 MPG city number to be accurate if you often drive in heavy traffic or accelerate quickly. The 25 MPG highway number is possible on long drives, but not during spirited drives. A combined average in the low 20s is more likely for most drivers. You can see LC MPG across all years to get a historical view of reported efficiency.

How it compares

The LC 500 Convertible is unique. It’s a naturally aspirated V8 grand tourer. Most cars now use turbocharged engines and hybrid systems. A Porsche 911 Carrera S Cabriolet, for example, gets 20 MPG combined with its turbocharged flat-six, and a BMW M850i Convertible gets 20 MPG combined with its twin-turbo V8. The LC 500 Coupe, with the same engine, gets only a little better at 19 MPG combined. These small differences may be less important to LC 500 Convertible drivers. They will value the Lexus character and the sound of its naturally aspirated engine.

Tips to maximize efficiency

Use the car’s driving modes. Selecting “Eco” mode will change the throttle response and transmission to focus on fuel efficiency instead of performance. It won’t turn the car into a fuel-efficient vehicle, but it can help you get a few more miles per gallon during normal driving.

Drive smoothly. Avoid fast acceleration and hard braking because these use extra fuel. Look ahead and keep a steady speed when you can. The LC 500’s V8 works well with smooth use of the gas pedal.

Keep the tires properly inflated. Underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressure often and inflate them to the recommended level. This is important because of the car’s weight.

Avoid idling. Idling uses fuel without going anywhere. If you’ll be stopped for more than a minute, turn off the engine. Planning can help with a larger motor.