The 2015 Lexus RC 350, with its 3.5L 6-cyl engine, gets 22 MPG combined, a figure that won’t win any fuel efficiency awards, but that’s not the priority of this stylish coupe. This car delivers luxury, performance, and head-turning design. While not the most fuel efficient, this fuel consumption is within the expectations of professionals and enthusiasts who prioritize driving pleasure and a premium experience over ultimate MPG.

City and highway performance

The EPA estimates city driving at 19 MPG for the 2015 Lexus RC 350, suggesting that stop-and-go traffic will impact your fuel consumption the most. The 28 MPG highway rating provides hope for those who frequently embark on longer journeys. This difference between city and highway MPG is typical of vehicles that rely on a naturally aspirated engine and a conventional automatic transmission. The RC 350’s V6 performs best when cruising at consistent speeds, but its efficiency suffers during aggressive acceleration and idling.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Lexus RC 350 is $2,650. This is based on driving 15,000 miles per year and national average fuel prices. This number offers a baseline for understanding the potential financial impact of owning this vehicle. Your actual fuel expenses may vary depending on your driving habits, the type of fuel you use, and gasoline prices in your area. Premium fuel is recommended for this vehicle to achieve optimal performance.

Real-world expectations

While the EPA estimates provide a standardized benchmark, real-world fuel economy often deviates due to driving style and maintenance conditions. Aggressive driving, frequent short trips, and even tire pressure can all affect your MPG. Owners who prioritize a smooth and measured driving style, combined with diligent maintenance, are more likely to achieve figures closer to the EPA estimates. Those who frequently unleash the RC 350’s 306 horsepower will inevitably see lower fuel economy. Weather conditions and carrying extra weight in the vehicle will also have an effect.

How it compares

The RC 350’s fuel economy sits within the competitive set of sporty luxury coupes from the era. For example, the 2015 BMW 435i Coupe posted EPA ratings of 22 MPG combined, 25 MPG highway and 19 MPG city with its 3.0L turbo six-cylinder. The Infiniti Q60 achieves around 22 MPG combined with its 3.7L V6. The Audi A5, offered with a smaller displacement turbocharged engine, manages slightly better figures of 25 MPG combined. The Lexus appeals to buyers looking for Lexus reliability and a generally softer, more luxurious driving experience, differentiating it enough from the sportier and more performance-oriented entries from Germany to make its slightly lower MPG acceptable.

Tips to maximize efficiency

Avoid aggressive acceleration, especially from a standstill. The RC 350’s engine responds willingly to throttle input, but that responsiveness comes at a price when it comes to fuel economy. Smooth, gradual acceleration will minimize fuel consumption during city driving. Don’t treat every green light like a drag race.

Maintain proper tire pressure as indicated on the sticker inside the driver’s side door. Underinflated tires increase rolling resistance, which directly impacts fuel efficiency. Regular tire pressure checks are a simple and effective way to improve your MPG. Diligent maintenance will improve economy.

Limit idling time whenever possible. Whether you’re waiting to pick someone up or simply warming the engine on a cold morning, excessive idling wastes fuel. If you anticipate a wait longer than 30 seconds, it’s generally more efficient to turn off the engine and restart it when you’re ready to go.

Plan your routes strategically, and avoid rush hour whenever possible. Navigating through congested traffic involves frequent braking and acceleration, which significantly reduces fuel economy. Using a GPS or navigation app can help you find alternative routes and avoid potential bottlenecks. Even better, try working from home.

Consider using cruise control on longer drives. Cruise control helps maintain a steady speed, which can improve fuel efficiency, especially on relatively flat stretches of highway. However, avoid using cruise control in hilly terrain, as the system may overcompensate and cause the engine to work harder than necessary.

Want to compare all Lexus fuel economy data? Or maybe you want to explore RC MPG across all years.