| Engine | 3.5L 6-cyl |
| Transmission | Automatic (S6) |
| Drive | All-Wheel Drive |
| Fuel Type | Premium Gasoline |
| Vehicle Class | Subcompact Cars |
| Engine Desc | SIDI & PFI |
| Start-Stop | No |
| EPA Vehicle ID | 46042 |
22 MPG combined won’t win any fuel efficiency awards, but it reflects the compromises in the 2023 Lexus RC 350 AWD. This stylish coupe is purchased by drivers who prioritize a refined driving experience and distinctive looks, not ultimate fuel savings. They want the security of all-wheel drive and the smooth, reliable V6, and they’re willing to accept the fuel costs.
City and highway performance
The EPA estimates the RC 350 AWD achieves 19 MPG in the city and 26 MPG on the highway. The difference between these figures highlights the RC 350’s weakness: stop-and-go traffic. The combination of all-wheel drive, the V6 engine, and a traditional six-speed automatic transmission (S6) consumes a lot of fuel when accelerating from a standstill. Highway driving, allows the engine to settle into a more efficient cruising speed, getting closer to its potential. Those who primarily use the RC 350 for commuting through congested urban areas will likely see fuel economy figures closer to the city rating, while drivers who frequently embark on longer freeway trips will experience numbers closer to the highway rating.
Annual fuel cost
The EPA estimates the annual fuel cost for the 2023 Lexus RC 350 AWD at $2,650. This calculation is based on driving 15,000 miles per year and using the national average fuel price at the time of the estimate. Individual fuel costs will vary depending on driving habits, local fuel prices, and the grade of gasoline used (premium is recommended for optimal performance, though not strictly required). Understanding how this figure is derived allows buyers to assess their potential fuel expenses realistically.
Real-world expectations
While the EPA provides a standardized estimate, real-world fuel economy always varies. Aggressive driving, frequent short trips, and extreme weather conditions can significantly impact fuel consumption. Most RC 350 AWD drivers fall within a range of 18-24 MPG in combined driving. Those with a lighter foot and more highway miles tend to achieve the higher end, while others consistently fall below the EPA combined rating. The RC 350 prioritizes performance, sound, and a certain driving feel. If you drive this car hard, the consumption will increase accordingly.
How it compares
The RC 350 AWD’s fuel economy puts it squarely in the middle of its competitive set. The Audi A5 Coupe with its turbocharged four-cylinder engine manages a more efficient 24 MPG combined. The BMW 430i xDrive Coupe, another four-cylinder turbo, achieves a similar 26 MPG combined. However, these competitors lack the sound and smooth character of the Lexus’ reliable V6 engine. The Infiniti Q60 AWD, with its twin-turbo V6, mirrors the RC 350’s fuel consumption at 22 MPG combined, sacrificing fuel economy for a power advantage. These comparisons highlight the trade-offs buyers make when choosing a luxury coupe. While other options offer slightly better fuel economy, they often compromise on engine character or driving experience. Explore RC MPG across all years to see if optimizing for a different model year is more suitable.
Tips to maximize efficiency
Gentle acceleration is key. The RC 350 AWD’s V6 is responsive, but aggressive throttle inputs drastically reduce fuel economy. Smoothly build speed and avoid unnecessary bursts of acceleration to conserve fuel. Anticipate traffic flow and minimize hard braking, which wastes kinetic energy and requires more fuel to regain speed.
Maintain proper tire inflation. Underinflated tires increase rolling resistance, forcing the engine to work harder, which burns more fuel. Check your tire pressure regularly and inflate them to the recommended specifications listed on the driver’s side doorjamb. This simple step can make a noticeable difference in fuel economy and tire life.
Consider the drive mode. The RC 350 offers different drive modes that affect throttle response and transmission shift points. Selecting “Eco” mode will prioritize fuel efficiency by reducing throttle sensitivity and shifting to higher gears sooner. “Normal” mode offers a balance between performance and efficiency. Only use “Sport” mode when you intend to exploit the performance.
Reduce unnecessary weight. Carrying extra weight in the vehicle, whether it’s cargo in the trunk or items in the cabin, increases the amount of energy required to move the car. Remove any unnecessary items from the vehicle to lighten the load and improve fuel economy. Check all Lexus fuel economy data to see how the RC 350 fares within the Lexus lineup.