The 2024 Lexus RX 350, with its 2.4L turbocharged 4-cylinder engine, gets 25 MPG combined. This places it in the middle of the luxury SUV category, which is acceptable for buyers who value comfort, Lexus reliability, and a quiet driving experience over maximum fuel savings. RX owners usually aren’t extremely focused on getting every last mile from a gallon; they want a dependable and pleasant vehicle that won’t cost too much at the pump, but also won’t lead the class in efficiency.

City and highway performance

The EPA estimates the RX 350 2.4L at 22 MPG in the city and 29 MPG on the highway. The city figure shows the engine’s quickness at lower speeds, helped by turbocharging, but also factors in urban stop-and-go driving. The highway MPG illustrates the RX’s focus on comfort over exceptional aerodynamic efficiency. The eight-speed automatic transmission helps keep the engine in its best power range, which helps both performance and highway fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Lexus RX 350 2.4L at $2,300. This is based on driving 15,000 miles per year and using national average fuel prices. Individual fuel costs can change a lot depending on driving habits, local fuel prices, and the type of fuel used. This is an estimate, and drivers who accelerate quickly or are often stuck in traffic will probably see a higher annual fuel bill.

Real-world expectations

EPA estimates provide a standard, but real-world fuel economy can be different. Factors like driving style, terrain, weather, and even tire pressure affect the MPG you’ll get. Drivers who often accelerate rapidly or spend most of their time in heavy traffic should expect fuel consumption closer to the city estimate. However, those who mainly cruise on highways at consistent speeds might see numbers close to or even a little higher than the EPA’s highway rating. Check out RX MPG across all years.

How it compares

The RX 350’s fuel economy is about average in the competitive luxury SUV category. A direct competitor, the Acura MDX with its standard 3.5L V6, gets a similar 22 MPG combined. The BMW X3 xDrive30i, with its 2.0L turbocharged four-cylinder and all-wheel drive, gets an EPA-rated 25 MPG combined, which matches the RX 350. Vehicles like the Lexus NX plug-in hybrid offer much better fuel economy if you prioritize efficiency above all else. People who are willing to consider hybrid options within the Lexus family will find alternatives with much better fuel economy. Before you decide, check all Lexus fuel economy data.

Tips to maximize efficiency

Use the RX 350’s drive modes. The “Eco” mode can improve fuel economy by changing throttle response and transmission behavior. This mode works best during steady driving on highways or in light traffic.

Pay attention to tire pressure. Underinflated tires increase rolling resistance, which lowers fuel efficiency. Check your tires often and inflate them to the pressure on the doorjamb sticker, usually 33-36 PSI.

Avoid idling. Modern engines can be restarted without using much fuel. If you’ll be idling for more than a minute, it’s usually better to turn off the engine.

Drive smoothly. Quick acceleration and hard braking use more fuel. Gradual acceleration and anticipating traffic can significantly change your fuel economy.

Remove extra weight. Carrying extra weight in your vehicle lowers fuel efficiency. Remove any items from the trunk or cargo area that you don’t need, especially heavy things, to improve gas mileage.