22 MPG combined in the 2017 Lexus RX 350 AWD won’t win any hypermiling awards, but it reflects the priorities of its target customer. This isn’t a vehicle bought for ultimate fuel efficiency, it’s purchased for its refined driving experience, legendary reliability, and comfortable interior. The RX 350 AWD delivers what its loyal owners expect: a fuss-free, luxurious crossover that can handle all weather conditions easily. Its fuel economy is simply part of the ownership math, not the defining factor.

City and highway performance

The EPA estimates 19 MPG in the city for the 2017 Lexus RX 350 AWD. While this number might seem low compared to some hybrid rivals, remember this is a naturally aspirated 3.5L V6 engine powering an all-wheel-drive system. Frequent stop-and-go traffic will highlight how much the V6 drinks. On the open road, the RX 350 AWD does better, achieving a respectable 26 MPG on the highway. The smooth-shifting eight-speed automatic transmission helps keep the engine in its optimal rev range for efficiency during steady-state cruising. Long highway trips are where the RX shines, providing a comfortable and composed ride while returning its best fuel economy figures.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2017 Lexus RX 350 AWD will be $2,000. This figure is based on driving 15,000 miles per year and using the national average fuel price for regular gasoline. Remember that this is simply an estimate and your actual fuel costs may vary depending on your driving habits, the type of roads you typically drive on, and the price of gasoline in your area. Aggressive driving and consistent city driving will push that number higher, while a more conservative driving style and mostly highway miles could lower it.

Real-world expectations

While the EPA estimates provide a good baseline, real-world MPG can change. Reports from owners show achieving numbers close to the EPA estimates is possible with careful driving. Expect the combined MPG to change depending on the season, as colder temperatures often lead to a slight decrease in fuel economy. Towing, though not a primary use case for the RX 350, will significantly impact fuel consumption. Owners who primarily use their RX 350 for short city trips might find their average below the EPA’s 19 MPG figure, while those who frequently embark on longer highway journeys should expect to see numbers closer to, or even slightly above, the 26 MPG highway rating.

How it compares

The 2017 Lexus RX 350 AWD’s fuel economy places it in the middle of its competition. For example, the Acura MDX SH-AWD, another popular Japanese luxury crossover, achieves a similar EPA-estimated 22 MPG combined. The BMW X3 xDrive35i, with its turbocharged inline-six, offers nearly identical fuel economy. However, the Volvo XC60 T6 AWD, with its supercharged and turbocharged four-cylinder engine, manages to squeeze out slightly better numbers, approaching 23 MPG combined. The main difference is the powertrain: the RX 350 has a smooth and reliable V6, which is a selling point for loyal Lexus buyers who want longevity and predictable performance over small fuel savings. Buyers looking for much better MPG in this class often consider hybrid variants like the RX 450h, which provides substantially improved fuel economy although at a higher initial cost.

Tips to maximize efficiency

Gentle acceleration is key to optimizing fuel economy in the RX 350 AWD. The V6 engine is responsive and powerful, but avoid aggressive throttle, especially from a standstill. Smooth acceleration allows the transmission to shift efficiently and keeps the engine operating in its most fuel-efficient range.

Maintain a steady speed on the highway. Using cruise control helps to prevent unnecessary changes in speed, which wastes fuel. Avoid constantly speeding up and slowing down, as this requires more energy and burns more fuel. Know the traffic flow and adjust your speed gradually.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which makes the engine work harder and reduces fuel economy. Check your tire pressure regularly and inflate them to the recommended pressure listed on the sticker inside the driver’s side doorjamb.

Reduce unnecessary weight in the vehicle. Extra cargo adds weight, which reduces fuel efficiency. Remove any items you don’t need, such as sports equipment or tools. A lighter vehicle requires less energy to move and will improve your MPG.

Keep up with regular maintenance. Routine maintenance ensures that your RX 350 AWD is running its best. This includes changing the engine oil, air filter, and spark plugs according to the manufacturer’s recommended schedule. Neglecting these maintenance tasks can lead to decreased fuel efficiency and potentially more serious mechanical problems.