21 MPG combined is not a selling point for the 2020 Lexus RC 350 AWD. This is a stylish, comfortable coupe designed for drivers who prioritize a smooth ride, confident all-weather traction, and Lexus reliability over ultimate fuel savings. Buyers choose the RC 350 AWD for its blend of luxury and sporty aesthetics, accepting its fuel consumption as part of the deal.

City and highway performance

The RC 350 AWD achieves 19 MPG in the city and 26 MPG on the highway, according to EPA estimates. The comparatively low city MPG reflects the engine’s need to work harder in stop-and-go traffic, and the all-wheel-drive system adds weight and consumes extra energy. The highway figure is more respectable, a benefit of the efficient automatic transmission and relaxed cruising nature of the 3.5L V6 at steady speeds. But even on the open road, the RC 350 isn’t designed for hypermiling, focusing instead on delivering a refined driving experience.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2020 Lexus RC 350 AWD is $2,750. This figure is calculated based on driving 15,000 miles per year, with 45% of those miles driven in the city and 55% on the highway, using national average fuel prices. Individual fuel costs will vary depending on driving habits, local fuel prices, and the actual number of miles driven annually. Drivers with heavier feet or those who spend more time in congested urban areas should anticipate spending more than the EPA estimate.

Real-world expectations

While the EPA provides a standardized test for fuel economy, your actual mileage will depend heavily on your driving style and conditions. Brisk acceleration, frequent hard braking, and extended idling will all negatively impact fuel consumption. Those who frequently engage the ‘Sport’ driving mode, which alters the engine mapping and transmission behavior for more aggressive performance, will also see a dip in fuel economy. Conversely, prioritizing smooth acceleration, maintaining consistent speeds, and minimizing idling will bring you closer to the EPA estimates. Also, be aware that winter blends of gasoline typically reduce MPG, further impacting fuel economy during colder months.

How it compares

The RC 350 AWD’s fuel economy places it in the middle of its competitive set. The BMW 430i xDrive coupe, for example, achieves 24 MPG combined from its turbocharged four-cylinder engine, a noticeable advantage. The Audi A5 Coupe Quattro also surpasses the RC 350’s mileage thanks to its turbocharged four-cylinder, delivering 27 MPG combined. However, opting for more powerful engines in those models, such as the BMW M440i xDrive (25 MPG combined) or the Audi S5 Coupe (24 MPG combined), brings their fuel consumption much closer to that of the Lexus. Buyers cross-shopping these vehicles need to weigh the RC 350’s V6 smoothness and standard AWD against the fuel efficiency of some competitors.

Tips to maximize efficiency

Avoid aggressive acceleration and braking. The RC 350 isn’t a sports car, it’s a comfortable cruiser. Smooth, gradual inputs on the throttle and brake pedal will significantly reduce fuel consumption. Anticipate traffic flow and maintain a consistent speed whenever possible. This Lexus is equipped with radar cruise control which can help with this aspect on the highway.

Ensure that the tires are properly inflated. Underinflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel. Check your tire pressures regularly (at least once a month) and inflate them to the recommended levels indicated on the doorjamb sticker. Properly inflated tires also improve handling and extend tire life.

Reduce unnecessary weight. Carrying extra cargo in the trunk or backseat adds weight to the vehicle, which negatively impacts fuel economy. Remove any unnecessary items to lighten the load. This includes golf clubs after your round! The less weight the engine has to move, the better the fuel economy.

Minimize idling time. Idling consumes fuel without covering any distance. If you anticipate being stationary for more than a minute or two, turn off the engine. Also, be mindful of remote starting the vehicle in cold weather; while it warms the cabin, it also burns fuel without improving efficiency.

Keep up with routine maintenance. Regular oil changes, air filter replacements, and other maintenance tasks ensure that the engine is running at peak efficiency. A well-maintained engine consumes less fuel and produces fewer emissions. Refer to the vehicle’s owner’s manual for the recommended maintenance schedule. You can also find all Lexus fuel economy data on our site, as well as RC MPG across all years to find the right vehicle for you.