23 MPG combined doesn’t exactly scream “fuel miser,” but it accurately reflects the 2021 Lexus RC 350’s priorities. This isn’t a hybrid, a dedicated economy car, or even a family-oriented SUV. It’s a stylish, comfortable coupe designed for drivers who appreciate a smooth and responsive V6 engine and the distinctive Lexus ownership experience. For buyers drawn to its charm and sporty character, fuel economy is a secondary, but relevant, consideration.

City and highway performance

The RC 350’s EPA ratings reveal its strengths and weaknesses. The 20 MPG city figure suggests that stop-and-go driving isn’t its best use, primarily because the naturally aspirated V6 needs to work harder to get the relatively heavy coupe moving from a standstill. Once underway, however, the 28 MPG highway rating paints a different picture. This car is comfortable and efficient during long cruises, thanks to the smooth-shifting eight-speed automatic transmission that allows the engine to settle into its most efficient range at higher speeds. The RC 350 is a capable long-distance partner, but it’s a compromise for those who primarily drive in dense urban environments.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Lexus RC 350 at $2,500. This figure is based on driving 15,000 miles per year, using a mix of city and highway driving, and factoring in the national average fuel price. Naturally, your individual fuel costs will vary depending on your driving habits, the type of fuel you use (premium is recommended), and local fuel prices. However, $2,500 provides a reasonable benchmark for comparing the RC 350’s fuel expenses to other vehicles in its class. For those considering the RC 350, it’s a good idea to use your personal driving statistics and average fuel prices to create a more accurate estimate of your running costs.

Real-world expectations

While EPA ratings offer a standardized comparison, real-world MPG often differs. The RC 350’s actual fuel economy heavily depends on driving style. Aggressive acceleration and frequent hard braking will significantly reduce MPG, especially in the city. Conversely, adopting a gentler approach, anticipating traffic flow, and maximizing highway driving can bring you closer to, or even slightly exceed, the EPA estimates. Many owners report figures slightly lower than the official numbers, especially those who prioritize performance over saving gas.

How it compares

The Lexus RC 350’s fuel economy sits in the middle of the pack when compared to its competitors. A similarly powered BMW 430i coupe manages a slightly better 28 MPG combined, thanks to its turbocharged four-cylinder engine. The Infiniti Q60, another stylish coupe, achieves around 22 MPG combined with its 3.0-liter twin-turbo V6. The Audi A5 coupe, with its smaller turbocharged engine, can reach up to 28 MPG combined. For potential RC 350 buyers, this comparison highlights the trade-off: the Lexus prioritizes a smooth, naturally aspirated V6 experience, while some competitors opt for turbocharged engines that offer more efficient performance. You can view RC MPG across all years on our website.

Tips to maximize efficiency

While the RC 350 isn’t designed to be a fuel-efficient vehicle, several techniques can help you get more miles out of each gallon. Avoid aggressive acceleration, especially from a standstill. The V6 is responsive, but heavy throttle use burns fuel quickly. Drive smoothly and anticipate traffic flow to minimize unnecessary braking and acceleration.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and maintain the recommended levels; the ideal pressures are generally posted on a sticker inside the driver’s side doorjamb.

Use cruise control on the highway whenever possible. Maintaining a consistent speed minimizes fuel consumption. The RC 350’s adaptive cruise control feature is particularly helpful in maintaining a safe distance from other vehicles while optimizing fuel efficiency on long drives.

Reduce unnecessary weight in the vehicle. Carrying excess weight forces the engine to work harder, which decreases fuel economy. Remove any items you don’t need from the trunk and rear seats.

Consider using the car’s drive mode selector. Switching to “ECO” mode will alter throttle response and transmission programming to prioritize fuel economy. While it will slightly dampen performance, it can make a noticeable difference over time. For more information, you should check all Lexus fuel economy data.