22 MPG combined isn’t going to win any awards for lower fuel costs, but it’s what you get with the 2021 Lexus RC 300 AWD. It balances luxury coupe style and all-weather confidence. This isn’t a car bought for maximum MPG; it’s a statement purchase, a reward to oneself that prioritizes design and driving experience over ultimate efficiency. Buyers are typically professionals who value the Lexus brand and want something more engaging than a sedan. They also demand the security of all-wheel drive, even if it means using a bit more gas.

City and highway performance

The EPA estimates for the RC 300 AWD are 19 MPG in the city and 26 MPG on the highway. The city figure reflects the realities of stop-and-go driving, a likely scenario for many RC 300 owners who commute to urban offices. The highway number, while better, still lags behind some competitors because of the RC 300’s naturally aspirated V6, which requires some revving to deliver its power. The automatic transmission, though smooth, has only six speeds, potentially limiting its ability to keep the engine in its most efficient range at higher speeds. However, for long highway cruises, the RC excels in ride comfort, which compensates for its lower fuel efficiency.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 Lexus RC 300 AWD at $2,650. This figure is based on driving 15,000 miles per year and using national average fuel prices. This is just an estimate, and your actual fuel costs may vary depending on your driving habits, the type of fuel you use, and prevailing gas prices in your area. It provides a useful benchmark when comparing the running costs of the RC 300 against other vehicles.

Real-world expectations

The EPA provides a standardized test, but real-world MPG often differs. RC 300 AWD owners report figures that generally hover around the EPA’s estimates. Aggressive driving or primarily city commutes can easily push the average down into the high teens. Careful highway driving might yield slightly better than the EPA’s 26 MPG. The key takeaway: drive it like a sports coupe, and you’ll pay the price. Drive it with a gentler touch, and you might meet or slightly exceed the official numbers. Always check RC MPG across all years to get a sense of real figures.

How it compares

The RC 300 AWD’s fuel economy is in the middle of its class. The BMW 430i xDrive coupe, for example, achieves a combined 28 MPG with its turbocharged four-cylinder engine. That’s a significant advantage for those prioritizing fuel savings. However, some buyers prefer the smoothness and sound of the Lexus’s V6 engine and are willing to accept the lower MPG. The Infiniti Q60 AWD, another stylish coupe, offers similar performance and fuel economy to the RC 300 AWD, but its interior and technology are not as competitive. The Audi A5 Coupe Quattro manages around 27 MPG combined, making it more efficient. These comparisons matter because buyers often cross-shop these models and consider fuel costs alongside style, performance, and brand reputation. Check all Lexus fuel economy data here.

Tips to maximize efficiency

Avoid aggressive acceleration. The RC 300’s V6 engine responds well to a gentle foot. Rapid acceleration burns unnecessary fuel. Instead, gradually build speed to maximize efficiency, taking advantage of the engine’s available torque.

Monitor tire pressure regularly. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure at least once a month and keep your tires inflated to the recommended pressure listed on the sticker inside the driver’s side doorjamb.

Minimize idling. Idling consumes fuel without covering any distance. If you anticipate waiting for more than a minute, turn off the engine. This simple habit can save a noticeable amount of fuel over time, especially in urban environments.

Use cruise control on the highway. Cruise control helps maintain a constant speed, which minimizes unnecessary acceleration and braking. This is especially effective on long, flat stretches of highway, where variations in speed can significantly impact fuel consumption.

Consider using a fuel additive. Some fuel additives are designed to clean fuel injectors and improve combustion efficiency. While the benefits vary, using a high-quality fuel additive periodically can help maintain optimal engine performance and may improve fuel economy over the long term.