The 2025 Lexus LC 500 has a combined fuel economy of 18 MPG. For many, even in its luxury segment, this number might raise an eyebrow. But for someone considering this naturally aspirated V8 grand tourer, 18 MPG is not a red flag. It is an expected byproduct of a singular automotive experience. This vehicle is not chasing economy. It delivers mechanical precision and a deeply analog driving feel almost extinct in today’s performance cars. Connoisseurs who appreciate a high-revving, non-turbocharged V8 buy the LC 500, not those prioritizing frugality. This powertrain demands fuel as part of its character.

City and highway performance

The 2025 Lexus LC 500 achieves 16 MPG in the city and 24 MPG on the highway. The city figure reflects the thirst of a large displacement V8 in stop-and-go traffic. Frequent idles, constant acceleration and deceleration cycles, and the shear inertia of the vehicle mean the engine often operates outside its most efficient RPM range. This is the reality of urban commuting in any high-performance vehicle, and the LC 500 is no exception. Owners accept this trade-off for the profound satisfaction of that engine’s accessible torque and instant throttle response.

On the highway, the 24 MPG figure is respectable for a vehicle of this caliber and powertrain. Once the S10 automatic transmission settles into its highest gears and the 5.0-liter V8 cruises at a consistent speed, its efficiency significantly improves. This highway economy supports the LC 500’s primary mission as a grand tourer. It is a car designed for effortless long-distance journeys where the engine can stretch its legs and deliver its power smoothly and economically, relatively speaking. Even a powerful naturally aspirated engine can achieve this level of efficiency at a steady pace.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,200 for the 2025 Lexus LC 500. This figure is based on a standardized calculation of 15,000 miles driven per year, split between city and highway driving (45% city, 55% highway), and using national average fuel prices for premium gasoline. For prospective LC 500 owners, this $3,200 annual outlay is a negligible factor in their overall vehicle ownership cost. These buyers are typically well-established and are investing in a luxury item that delivers a specific, high-end experience. The cost of fuel, while not insignificant in absolute terms, is simply part of the operational expense of owning a vehicle of this quality and performance. They are paying for the privilege of experiencing that naturally aspirated V8, the unparalleled refinement, and the distinctive design that define the LC 500.

Real-world expectations

In the real world, LC 500 owners often see fuel economy figures closely matching or slightly exceeding the EPA’s estimates, particularly during extended highway cruising. The vehicle’s exemplary aerodynamics and the smooth operation of the S10 automatic transmission contribute positively here. However, spirited driving, which is undoubtedly part of the LC 500 ownership experience, will naturally result in lower figures. Hammering the throttle to enjoy the engine’s 7,300 RPM redline or navigating congested city streets with frequent accelerations will push consumption into the mid-teens or even lower. The LC 500 rewards dynamic driving, and those who regularly exploit its capabilities understand that such exhilaration comes with a corresponding increase in fuel consumption. This is not a complaint. It is simply the nature of the beast. The buyers of this vehicle are fully aware that the joy derived from its performance far outweighs any concern over an extra gallon here or there. They have chosen a car for its soul, not its spreadsheet efficiency.

How it compares

When placed against its competitive set, the 2025 Lexus LC 500’s 18 MPG combined figure tells an interesting story. Consider the BMW 840i Gran Coupe, powered by a 3.0L inline-six turbo, which achieves 25 MPG combined (22 city / 29 highway). This significant difference is largely due to BMW’s embrace of smaller displacement, turbocharged engines. Then there is the Porsche 911 Carrera, with its 3.0L twin-turbo flat-six, managing 21 MPG combined (18 city / 25 highway) in its base configuration. Even stepping up to something like the Aston Martin Vantage with its 4.0L twin-turbo V8, you are looking at around 19 MPG combined (18 city / 24 highway). The LC 500’s primary differentiation lies in its naturally aspirated 5.0L V8. It is the last holdout, the purist’s choice in a segment increasingly dominated by forced induction. While its rivals often offer better fuel economy, they do so at the expense of the LC 500’s unique aural and visceral character. The buyer opting for the LC 500 understands this trade-off implicitly; they prioritize the immediate throttle response, the linear power delivery, and the unforgettable exhaust note of the atmospheric V8 over a few extra miles per gallon. For more on Lexus’s various models, all Lexus fuel economy data provides a broader perspective, and for specific model year data, you can view LC MPG across all years.

Tips to maximize efficiency

While the LC 500 isn’t purchased for its economy, there are specific strategies to maximize its efficiency without diminishing the driving experience. Smooth, progressive throttle inputs are key; avoid abrupt acceleration, which forces the V8 to consume more fuel than necessary. The car’s torque is readily available, so let it do the work rather than aggressively downshifting.

Use the automatic transmission’s ability to smoothly shift into higher gears. In normal driving, allow the S10 to select the optimal ratio, as it’s programmed for a balance of performance and efficiency. Resist the urge to constantly use the paddle shifters for manual control unless you specifically desire a more sporting drive, as frequent manual downshifts can increase consumption.

Maintain consistent highway speeds and practice anticipation to minimize braking and re-acceleration. Actively looking ahead for traffic changes allows for gentle deceleration rather than hard braking, which means less energy is wasted. The LC 500’s ample power reserves make maintaining speed effortless.

Regular maintenance is crucial for any vehicle’s efficiency, and the LC 500 is no different. Ensure correct tire pressures are maintained, and follow Lexus’s recommended service schedule, particularly pertaining to oil changes and air filter replacements. A well-tuned engine operates more efficiently across its entire rev range.

Consider the drive mode selections. While Sport and Sport+ modes sharpen throttle response and hold gears longer, they inherently increase fuel consumption. For extended cruising or everyday commuting where exhilaration isn’t the primary goal, leaving the vehicle in Normal or Eco mode will yield noticeably better MPG figures without sacrificing the LC’s inherent refinement.