How many miles per gallon does a 2020 Lexus RX 450h get?
The 2020 Lexus RX 450h is a hybrid SUV that pairs a 3.5-liter V6 engine with electric motors. The official EPA estimates place combined mileage around 30 mpg, with some variation by drivetrain. Specifically, front-wheel-drive models are rated at 31 mpg city / 28 mpg highway / 30 mpg combined, while all-wheel-drive models are rated at 29 mpg city / 28 mpg highway / 29 mpg combined. Real-world mileage varies with driving conditions and tire choice.
EPA estimates by drivetrain
The EPA publishes separate fuel economy estimates for the RX 450h depending on whether the model is front-wheel drive (FWD) or all-wheel drive (AWD). The numbers below apply to 2020 models with standard tires.
- Front-wheel-drive RX 450h: 31 mpg city / 28 mpg highway / 30 mpg combined.
- All-wheel-drive RX 450h: 29 mpg city / 28 mpg highway / 29 mpg combined.
In practice, most drivers report combined mileage near 29–30 mpg, with highway driving often reaching the upper end of the range and city driving lower depending on traffic and use of electric assist.
Real-world factors and tips
Fuel economy for hybrids like the RX 450h depends on several factors beyond drivetrain. Driving style, tire pressure, and payload all influence results. Here are practical tips to maximize efficiency:
- Keep tires inflated to the manufacturer’s recommended pressure; underinflated tires reduce efficiency.
- Drive smoothly with gradual acceleration and braking; aggressive driving lowers mpg.
- Remove unnecessary cargo and roof racks when not in use to reduce wind resistance and weight.
- Use Eco/Hybrid modes when appropriate to optimize regenerative braking and engine shut-off features.
Following these practices can help you approach the EPA estimates in everyday driving conditions.
Summary
The 2020 Lexus RX 450h achieves about 29–30 mpg combined, depending on drivetrain. Expect around 31 mpg city / 28 mpg highway for FWD and roughly 29 mpg city / 28 mpg highway with AWD, with real-world mileage varying by driving style, terrain, and tire choices. The hybrid system prioritizes efficiency through electric assist and regenerative braking, but actual figures will fluctuate based on usage.
