24 MPG combined puts the 2025 Lexus RX 350 AWD 2.4L 4-cyl in a good position for a luxury mid-size SUV, delivering efficiency both respectable and expected by its buyers. This isn’t a vehicle chasing outright fuel economy records; it’s a meticulously crafted experience, and its efficiency numbers reflect a balanced approach to power, refinement, and everyday usability. The RX 350 AWD caters to families, professionals, and empty-nesters who demand a premium driving experience without excessive concessions at the pump. They value Lexus’s impeccable reputation for reliability, a quiet cabin, and a smooth, confident ride. The 2.4L turbocharged four-cylinder engine, paired with an 8-speed automatic transmission and all-wheel drive, provides ample power for daily commuting and highway cruising while maintaining reasonable consumption figures for its class. It’s a vehicle purchased for its overall competence and long-term ownership satisfaction, where fuel economy is a consideration, but not the singular driving force behind the decision.

City and highway performance

The 2025 RX 350 AWD’s EPA ratings of 21 MPG in the city and 28 MPG on the highway paint a clear picture of its operational characteristics. The 21 MPG city figure is quite good for a vehicle of this size and weight, particularly one equipped with all-wheel drive. Stop-and-go traffic, common in urban environments, often challenges larger vehicles, but the RX 350 manages it with competence. This indicates a well-tuned powertrain that doesn’t guzzle fuel excessively during frequent accelerations and decelerations. On the open road, the 28 MPG highway rating showcases the efficiency of the 2.4L turbo engine when maintaining a steady pace. It’s a comfortable cruiser, and the engine, while not a V6, delivers smooth power for merging and passing, making long journeys relaxed and relatively economical. These numbers reinforce the RX 350’s mission as a versatile daily driver equally at home on city streets as it is devouring highway miles.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,400 for the 2025 Lexus RX 350 AWD 2.4L 4-cyl. This figure is derived from a standardized calculation assuming 15,000 miles driven per year, split evenly between city and highway driving (45% city, 55% highway), and using national average fuel prices. For the typical RX buyer, this annual expense is well within expectations and aligns with the cost of owning a premium mid-size SUV. It’s not a budget-breaker, nor is it ultra-low, but rather a predictable and manageable expense for a vehicle offering this level of luxury and capability. Understanding this calculation helps demonstrate that while luxury vehicles often carry higher acquisition prices, their running costs, specifically fuel, are often quite competitive when considering the segment.

Real-world expectations

In real-world driving conditions, most owners of the 2025 RX 350 AWD will find their fuel economy numbers hover very close to the EPA’s combined 24 MPG average. Lexus powertrains are known for their consistency and ability to achieve their stated figures without significant effort. Drivers who spend more time on uninterrupted highway stretches may even see figures approaching or slightly exceeding the 28 MPG highway rating. Conversely, primarily urban drivers, especially those in heavy traffic or with a lead foot, might find their numbers leaning closer to the 21 MPG city rating, or perhaps a whisker below.

Factors like aggressive driving, heavy loads, frequent short trips in cold weather, and mountainous terrain will naturally impact efficiency. The RX 350’s character, a smooth, comfortable, and confident cruiser, inherently encourages a driving style conducive to achieving its published MPG figures. Owners aren’t typically pushing this vehicle to its limits. For more insight, you can explore RX MPG across all years.

How it compares

The 2025 Lexus RX 350 AWD goes head-to-head with some formidable rivals in the luxury mid-size SUV segment, and its 24 MPG combined figure holds its own. Consider the Acura MDX SH-AWD, which with its 3.5L V6 typically achieves around 21 MPG combined. The RX 350 clearly has an advantage here, making it a good choice for those who prioritize efficiency without wanting to sacrifice size or all-wheel-drive capability. Another competitor, the Genesis GV70 2.5T AWD, is often rated around 22 MPG combined. While a strong contender in other areas, the GV70 is slightly less efficient than the RX 350. Even premium European rivals like the Mercedes-Benz GLC 300 4MATIC, with its 2.0L turbo-four, manage around 24 MPG combined, putting the RX 350 directly in line with its most efficient peers in that specific powertrain configuration. This level of competitiveness demonstrates that Lexus has acutely tuned the RX 350 to deliver segment-appropriate efficiency, satisfying buyers who demand performance and luxury in equal measure. To see how other Lexus models stack up, check out all Lexus fuel economy data.

Tips to maximize efficiency

Maintaining proper tire pressure is one of the easiest and most effective ways to ensure your RX 350 AWD achieves its optimal fuel economy. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your tire pressures regularly, especially before long trips, and adjust them to the manufacturer’s recommended settings found on the driver’s side door jamb.

Adopting smoother driving habits can significantly impact your RX’s fuel efficiency. Avoid rapid acceleration and hard braking, as these actions consume more fuel than gradual inputs. Anticipate traffic flow and road conditions, allowing you to maintain momentum and coast whenever possible, which is particularly beneficial for the 2.4L turbocharged engine.

Regular maintenance, following Lexus’s recommended schedule, is crucial for preserving your vehicle’s fuel economy. A well-maintained engine with clean air filters, properly functioning spark plugs, and the correct oil viscosity will operate more efficiently. Neglecting service can lead to decreased performance and increased fuel consumption over time.

Minimize unnecessary weight in your RX 350. Extra cargo, especially heavy items, forces the engine to burn more fuel to move the vehicle. Similarly, removing roof racks or cargo carriers when not in use can reduce aerodynamic drag, particularly at highway speeds, further contributing to better mileage.

Use the RX 350’s selectable drive modes. While the “Sport” mode sharpens throttle response, it also encourages more aggressive driving, which can reduce efficiency. Sticking to “Normal” or “Eco” mode for everyday driving will optimize the engine’s and transmission’s behavior for fuel conservation, without sacrificing the comfortable and composed ride.