21 MPG combined isn’t going to win any awards, but it’s the price for the 2017 Lexus RC 300 AWD, a stylish coupe that focuses on sure-footedness and a refined driving experience over saving gas. This isn’t a car bought for hypermiling; it’s a statement, a personal indulgence for those who value luxury and distinctive design. A buyer looking at this particular RC configuration knows exactly what they are getting into, all-wheel drive traction, a proven V6 engine, and Lexus build quality and reliability, all in an attractive package.

City and highway performance

The EPA estimates of 19 MPG in the city and 26 MPG on the highway accurately reflect the RC 300 AWD’s driving characteristics. The city number is impacted by the all-wheel drive system’s additional weight and parasitic loss, a factor that becomes less noticeable on the open road. The six-speed automatic transmission, while reliable, also lags behind some competitors with more modern eight or ten-speed units, hurting efficiency at highway speeds. The 3.5L V6 offers sufficient power and responsive acceleration, making it fun to drive, but not especially designed as a fuel-sipper. For comparison, the rear-wheel drive RC 300 gets slightly higher highway numbers.

Annual fuel cost

The estimated annual fuel cost for the 2017 Lexus RC 300 AWD is $2,750, according to the EPA. This figure is calculated based on driving 15,000 miles per year and using the national average fuel price for premium gasoline, which this engine requires. Actual fuel costs will vary depending on individual driving habits, local fuel prices, and the type of driving done most frequently. If you mostly stick to city driving or have a heavier right foot, expect to spend more; conversely, primarily highway driving might result in slightly lower costs.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy often differs. Many RC 300 AWD owners report numbers around the EPA estimates. Driving style significantly impacts the final result. Aggressive acceleration and frequent hard braking will severely impact fuel efficiency. Consistent highway cruising can help you achieve, or even slightly exceed, the 26 MPG rating. Tire pressure, vehicle maintenance, and even the type of gasoline used can make subtle differences. The RC 300 AWD buyer likely accepts some degree of fuel inefficiency in exchange for the car’s other attributes.

How it compares

The RC 300 AWD faces stiff competition in the luxury coupe segment. The BMW 430i xDrive coupe, for example, gets a combined EPA rating of 27 MPG, a significant improvement over the RC. The Audi A5 Coupe quattro achieves a similar 27 MPG combined, showcasing the efficiency benefits of their turbocharged four-cylinder engines. Even the Infiniti Q60 AWD, with its available turbocharged V6, often delivers slightly better real-world fuel economy. These competitors may not match the RC 300 AWD’s reputation for reliability and smooth power delivery. For all all Lexus fuel economy data, it’s useful to compare different models. Thinking about other model years? Check the RC MPG across all years.

Tips to maximize efficiency

Use the RC 300 AWD’s “ECO” mode when possible. This setting, found in the drive mode selector, adjusts throttle response and climate control settings to prioritize fuel efficiency. It might slightly reduce performance, but it can make a noticeable difference in stop-and-go traffic.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which directly impacts fuel economy. Check your tires regularly and inflate them to the pressure specified on the door placard.

Minimize idling. Modern engines, including the RC 300 AWD’s V6, are designed to restart efficiently. If you anticipate a prolonged stop, turning off the engine can save a significant amount of gas over time.

Anticipate traffic flow when possible and avoid unnecessary acceleration and braking. Smooth driving not only improves fuel efficiency but also enhances the overall driving experience.

Reduce your cargo weight. The more weight the RC 300 AWD carries, the harder the engine has to work, which obviously impacts MPG. Remove any unnecessary items from the trunk to optimize fuel efficiency.