The 2020 Lexus RC 300 AWD with the 3.5L V6 engine gets 21 MPG combined. That figure, while not class-leading, reflects the tradeoffs in a stylish, all-weather coupe that prioritizes a smooth, naturally aspirated engine and a refined driving experience over pure fuel efficiency. These owners aren’t hypermilers, they appreciate the RC’s distinctive styling, luxurious interior, and the confident grip of all-wheel drive, even if it means slightly more frequent trips to the gas station.

City and highway performance

The RC 300 AWD’s EPA ratings are 18 MPG in the city and 24 MPG on the highway. The city figure reflects stop-and-go traffic, where the engine’s responsiveness is appreciated, but fuel consumption suffers. The 24 MPG highway rating allows for decent range on longer trips. Expect this number to drop if you frequently drive at higher speeds or encounter hilly terrain, as the engine works harder. The six-speed automatic transmission is smooth and predictable, if a bit dated compared to the 8- and 10-speed units in some competitors, which impacts fuel economy since more gears allow the engine to stay in its most efficient RPM range longer,. You can see all Lexus fuel economy data to compare how this engine performs in other models.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2020 Lexus RC 300 AWD is $2,750. This figure is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and local fuel prices. Aggressive driving or consistent use of premium fuel will likely increase your annual fuel expenses above the EPA’s estimate. Sticking to regular unleaded and practicing fuel-efficient driving techniques can help you stay closer to that $2,750 figure, or potentially even beat it.

Real-world expectations

While the EPA provides a standardized estimate, real-world fuel economy can differ. RC 300 AWD drivers average around 20 MPG in mixed driving conditions, which is close to the EPA’s combined rating. Some owners who do mostly highway driving exceed the 24 MPG highway estimate. Those who spend most of their time in heavy city traffic may see their fuel economy dip below 18 MPG. Your mileage will vary based on your individual driving style and conditions. Reviewing owner forums and fuel tracking apps can give you a better sense of what to expect in your specific situation. You can also see RC MPG across all years to understand trends.

How it compares

The RC 300 AWD’s fuel economy is in the middle compared to other luxury coupes with all-wheel drive. The BMW 430i xDrive achieves an EPA-estimated 27 MPG combined, offering a fuel efficiency advantage, with a turbo four-cylinder engine. The Infiniti Q60 AWD, with its twin-turbo V6, gets around 22 MPG combined, similar to the RC 300 AWD but with more horsepower. Buyers choose the RC 300 AWD for its Lexus reliability, smooth V6, and distinct design. These buyers prioritize a refined driving experience over maximizing gas mileage.

Tips to maximize efficiency

One of the best ways to improve the RC 300 AWD’s fuel economy is to adopt a smoother driving style. Avoid sudden acceleration and braking, and try to maintain a consistent speed. This is important in city driving, where aggressive driving can significantly reduce fuel efficiency.

Regular maintenance is critical. Ensure your tires are properly inflated, as underinflated tires increase rolling resistance and reduce fuel economy. Follow the recommended maintenance schedule for oil changes and other services, as a well-maintained engine will run more efficiently.

Consider using the RC 300 AWD’s “Eco” driving mode, if equipped. This mode adjusts the throttle response and transmission shift points to prioritize fuel efficiency, and while it may slightly reduce performance, it can help you save fuel in everyday driving.

Minimize idling time. If you’re stopped for more than a minute, turn off the engine. Modern vehicles are designed to restart quickly and efficiently, and idling consumes fuel without moving the car.