The 2023 Lexus RX 350 AWD with its 2.4L turbocharged four-cylinder engine gets 24 MPG combined, placing it in the middle of its class. It’s neither the most fuel-efficient nor the least. It’s an acceptable figure for a luxury crossover that prioritizes a smooth ride, a plush interior, and the security of all-wheel drive over extreme efficiency, characteristics that appeal to its target customer. Buyers are willing to trade a few MPGs for the overall ownership experience and long-term Lexus reliability.

City and highway performance

The EPA estimates the 2023 Lexus RX 350 AWD achieves 21 MPG in the city and 28 MPG on the highway. The urban fuel economy reflects the stop-and-go nature of city driving, where the turbocharger is engaged often and the engine works harder. The 8-speed automatic transmission shifts effectively across all driving conditions, with smooth transitions between gears. The highway figure shows the engine’s efficiency at a steady cruising speed.

The 2.4L turbo is a smaller engine than the V6 it replaced, but it provides ample power for confident passing and merging.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Lexus RX 350 AWD at $2,400. This is based on driving 15,000 miles per year using national average fuel prices. Fuel costs will vary depending on driving habits, geographic location, which affects gas prices, and the type of fuel used. Remember this is just an estimate, and your expenses may be higher or lower.

Real-world expectations

The EPA figures provide a benchmark, however real-world MPG will change based on driving style and conditions. Aggressive acceleration and frequent hard braking will decrease fuel economy. Relaxed cruising and anticipating traffic flow will likely improve it. Cold weather can negatively impact fuel efficiency, especially on shorter trips before the engine reaches operating temperature.

RX buyers often prioritize comfort and convenience, and fuel economy might be a secondary concern after overall drive feel and luxury interior amenities. Owners who drive conservatively and rack up predominantly highway miles may see figures closer to, or slightly above, the EPA’s 28 MPG rating. Those spending most of their time in stop-and-go traffic may see significantly lower numbers.

How it compares

The 2023 Lexus RX 350 AWD compares well to its competitors. The Acura MDX SH-AWD, for example, achieves 19 MPG city and 25 MPG highway. The BMW X3 xDrive30i gets 23 MPG city and 29 MPG highway, which makes it a slightly more efficient choice on the highway. The RX 350 prioritizes smooth ride quality and Lexus reliability, compared to some of its rivals.

Consider the RX 350h hybrid. It’s more expensive, but offers improved fuel economy, making it a good option for buyers who want less gas. Compare the RX MPG across all years to discern a possible upgrade.

You can also explore all Lexus fuel economy data for additional model information.

Tips to maximize efficiency

Avoid aggressive driving. The RX 350’s turbocharged engine responds well, but hard acceleration and braking will lower fuel economy. Drive smoothly and anticipate traffic. This allows the engine management system to operate efficiently.

Keep proper tire inflation. Under-inflated tires increase rolling resistance, forcing the engine to work harder and reducing fuel economy. Check your tire pressure and inflate them to the recommended pressure listed on the doorjamb sticker. Consider purchasing low rolling resistance tires if you’re shopping for new tires.

Minimize idling. Idling, especially in cold weather, consumes fuel. If you expect to be stopped for more than a minute or two, turn off the engine. The turbocharger can be sensitive to heat build-up while idling; short idling is better for turbocharger longevity.

Use the available drive modes. The RX 350 typically offers selectable drive modes. Select “ECO” mode when appropriate, as these modes alter throttle response and transmission shift points to improve fuel efficiency. The system is tuned to optimize fuel consumption and will not hamper performance.