21 MPG combined might not excite everyone, but most 2018 Lexus RC 350 AWD buyers likely expect this. It’s not a Prius, and it’s not trying to be. It’s a stylish, comfortable, and capable all-weather coupe that prioritizes luxury and refinement over fuel efficiency. Drivers of this car often trade some MPG for the confident handling and feel that all-wheel drive provides, along with the smooth power of its V6.

City and highway performance

The EPA estimates that the 2018 Lexus RC 350 AWD gets 18 MPG in the city and 24 MPG on the highway. The city figure reflects stop-and-go traffic and lower-speed driving, conditions where the car’s weight and all-wheel-drive system contribute to lower fuel economy. However, the highway number shows that the RC 350 AWD can achieve reasonable efficiency when cruising at a steady speed. The six-speed automatic transmission is geared for smoothness rather than efficiency, which affects the highway MPG.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 Lexus RC 350 AWD at $2,750. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. Drivers with a heavy foot or those who drive more in city traffic will likely exceed this estimate.

Real-world expectations

EPA estimates provide a benchmark, but real-world fuel economy varies. Drivers who often drive aggressively or live in hilly areas may see figures closer to the city rating, even on longer trips. On the other hand, those who accelerate smoothly and maintain consistent speeds on flat highways might achieve slightly better than the EPA’s 24 MPG highway estimate. You can join online RC forums to get fuel economy information from other owners.

How it compares

The 2018 Lexus RC 350 AWD isn’t the best in fuel economy, but it’s not the worst either. The BMW 430i xDrive coupe, for instance, gets a slightly better 27 MPG combined with its turbocharged four-cylinder engine. That engine, however, delivers a different driving experience than the Lexus’ V6. The Infiniti Q60 AWD, with its available 3.0t engine, gets a similar 22 MPG combined, making it a closer competitor in terms of performance and efficiency. Buyers often compare these vehicles, weighing the tradeoffs between fuel economy, power, and overall driving feel. If you’re focused on fuel efficiency, consider the Acura TLX SH-AWD, which offers a more practical sedan body while getting fuel economy similar to the RC 350.

Tips to maximize efficiency

Gentle acceleration will improve fuel economy. Avoid aggressive starts and rapid acceleration, especially in city driving. The RC 350 AWD has plenty of power, but using it carefully will conserve fuel.

Make sure your tires are inflated correctly. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure regularly and inflate them to the recommended pressure listed on the sticker inside the driver’s side door jamb.

Removing extra weight in the vehicle will improve MPG. Extra weight reduces fuel economy, and the RC isn’t the lightest car in its class. Remove any items from the trunk or backseat that you don’t need regularly.

Use cruise control on the highway. Maintaining a consistent speed can help optimize fuel consumption. Avoid using cruise control in hilly terrain, as the transmission may downshift frequently, negating some fuel-saving benefits. You can find all Lexus fuel economy data on our site.

Consider using a fuel additive to clean fuel injectors. Clean fuel injectors ensure proper fuel atomization, which can improve combustion efficiency and fuel economy. Choose a reputable brand and follow the manufacturer’s instructions. Also, check out RC MPG across all years.