27/28 MPG4 Lexus RX 500h MPG Ratings Drivers can expect to realize up to an EPA-estimated 27/28 MPG4 (City/Highway) in the new Lexus RX 500h F SPORT Performance AWD.

35 miles Lexus adds a plug-in hybrid to its segment-leading RX lineup. The Lexus RX 450h+ adds a plug-in powertrain to the RX lineup, which nets you an estimated 35 miles of battery range. The new upscale crossover features an automaker-estimated 83 MPGe combined rating.

The 500h is powered by a 2.4-liter turbocharged 2.4-liter four-cylinder engine and electric motor on the rear axle, paired with a six-speed automatic transmission. Total output is 366 horsepower and 406 pound-feet of torque.

No. Reasons Why: The gasoline engine of the vehicle charges the hybrid battery as needed. This hybrid battery does not require external charging from an outside source such as an electric vehicle.

Under normal conditions, you can expect Lexus hybrid car batteries to last up to 150,000 miles or 15 years and sometimes even longer. Learn all about Lexus hybrid battery replacement costs and more today with Lexus of Cerritos!

3. Ratings achieved using the required premium unleaded gasoline with an octane rating of 91 or higher. If premium fuel is not used, performance will decrease.

Under normal conditions, you can expect Lexus hybrid car batteries to last up to 150,000 miles or 15 years and sometimes even longer.

With proper maintenance, a Lexus car last around 250,000-300,000 miles. So, it indicates that the car can easily last for around 17-20 years. The normal lifespan of a car is around 150,000-200,000 miles. So, buying a Lexus car can be a very good investment.

27 mpg combined Fuel economy is 27 mpg combined versus 24 mpg for the 350 AWD and 36 mpg for the hybrid. The RX 500h F Sport Performance delivers great passing power, but power delivery surges between the two power units versus acting as one unified propulsion force.

The gas-electric Lexus matched its 28-mpg EPA highway estimate on our 75-mph highway fuel-economy test. That's 5 mpg better than the aforementioned MDX Type S. The RX500h also has an EPA city estimate of 27 mpg, which is 5 mpg better than the nonhybrid RX350.

If you continue using regular gas, the performance of your car will suffer and so will the fuel economy. Even worse, regular gas makes your car's engine more prone to detonate. The bottom line is, if Lexus requires that you use premium gas, or at least octane rating 91, do not use regular gas.

If the high-voltage battery completely dies, however, the car won't be able to be driven at all, in most cases. The car will detect that a catastrophic failure has occurred and will put a stop to all motion to avoid damaging anything else.