21 MPG combined isn’t likely a key selling point for the 2017 Lexus RC 350 AWD. This is a stylish coupe designed for comfortable cruising and confident all-weather grip, not hypermiling. Its blend of luxury appointments, sculpted lines, and a willing 3.5L V6 engine appeals to drivers who prioritize sporty aesthetics and a premium driving experience over outright fuel efficiency. The RC 350 AWD buyer understands there’s a price to pay at the pump for the refined performance and sophisticated image this Lexus projects.

City and highway performance

The EPA estimates for the 2017 RC 350 AWD are 19 MPG in the city and 26 MPG on the highway. The city figure reflects the realities of stop-and-go traffic where the engine spends more time idling or accelerating from a standstill, conditions that naturally impact fuel consumption. The highway number demonstrates the engine’s ability to deliver respectable efficiency when cruising at a steady speed; the six-speed automatic transmission helps settling into higher gears, lowering engine RPMs and minimizing fuel burn. Note that results will vary depending on driving style and road conditions.

Annual fuel cost

The EPA calculates that the annual fuel cost for the 2017 Lexus RC 350 AWD is $2,750. This figure is based on driving 15,000 miles per year and using national average fuel prices. Of course, your individual fuel expenditure will vary based on how many miles you drive annually and the prevailing price of gasoline in your area. It’s still a useful benchmark for understanding the approximate running costs of the vehicle.

Real-world expectations

While the EPA estimates provide a standardized baseline, real-world fuel economy often differs based on several factors. Aggressive driving habits, frequent short trips, and carrying extra weight in the vehicle can all negatively affect MPG. Conversely, careful driving, proper tire inflation, and regular maintenance can help you get closer to, or even exceed, the EPA estimates. It is also important to use the correct fuel grade, as specified by Lexus, to maintain optimal engine performance and fuel economy.

How it compares

Competitors in the luxury coupe segment offer varying degrees of fuel efficiency. For example, the BMW 430i xDrive Coupe, with its 2.0L turbocharged four-cylinder engine, achieves a slightly better 27 MPG combined. The Infiniti Q60 AWD, with its standard 3.0L twin-turbo V6, is closer at 22 MPG combined. Audi’s A5 Coupe, with its 2.0L turbo, boasts 27 MPG combined. These differences, while seemingly small, can add up over time. The buyer choosing the RC 350 likely prioritizes the smoothness and sound of the V6 engine, along with Lexus’s reputation for reliability, over the absolute best fuel economy possible within the segment. Compare the RC MPG across all years to understand changes in efficiency.

Tips to maximize efficiency

Pay attention to your driving style. The RC 350’s V6 can be eager to rev, but smooth acceleration and gentle braking significantly reduces fuel consumption. Anticipate traffic flow and avoid unnecessary bursts of speed, allowing the car to coast when possible.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and reduces fuel economy. Check your tire pressures regularly and maintain them at the recommended levels.

Consider switching to a lighter wheel and tire package if you are looking for slight gains in fuel economy. Lower weight at the wheels reduces rotational inertia, making it easier to accelerate and maintain speed.

Minimize idling. If you anticipate being stopped for more than a minute, turn off the engine. Excessive idling consumes fuel without covering any distance, significantly impacting your overall MPG, especially in urban settings.

Keep the car properly maintained. Regular servicing, including oil changes, air filter replacements, and spark plug maintenance, ensures the engine runs efficiently. Refer to the Lexus maintenance schedule for details on required services. You can view all Lexus fuel economy data on this site.