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How many miles per gallon does a Lexus 450h hybrid get?

The Lexus 450h hybrid vehicle is known for its impressive fuel efficiency, delivering an average of 43 miles per gallon (mpg) in combined city and highway driving. This makes the 450h one of the more fuel-efficient luxury hybrid models on the market.


Fuel Economy Breakdown


According to the U.S. Environmental Protection Agency (EPA), the Lexus 450h hybrid has the following fuel economy ratings:



  • City driving: 44 mpg

  • Highway driving: 43 mpg

  • Combined city/highway: 43 mpg


These figures are based on the EPA's standardized testing procedures, which take into account a variety of factors, including vehicle weight, engine size, and driving conditions. The 450h's hybrid powertrain, which combines a gasoline engine with an electric motor, is a key contributor to its high fuel efficiency.


Factors Affecting Fuel Economy


While the EPA ratings provide a good baseline, a vehicle's actual fuel economy can vary depending on several factors, including:



  • Driving style: More aggressive acceleration and higher speeds can reduce fuel efficiency.

  • Road conditions: Driving on hilly or mountainous terrain can impact fuel economy.

  • Weather and temperature: Extreme hot or cold weather can affect a hybrid's battery performance and fuel consumption.

  • Vehicle maintenance: Proper tire inflation, wheel alignment, and engine tuning can help maximize fuel efficiency.


It's important to note that individual driving experiences may differ from the EPA's estimates, but the Lexus 450h hybrid remains one of the more fuel-efficient luxury vehicles on the market.

How far can a Lexus hybrid go on a tank of gas?


566 miles
The mild-hybrid Lexus NX 350h can travel a total of 566 miles on a full tank of gas and juice from the mild-hybrid battery. The plug-in hybrid Lexus NX 450h+ and Lexus NX 450h+ F SPORT Handling AWD can travel 37 miles6 using electric-only power. EPA-estimated 41 city/ 37 hwy/ 39 comb MPG rating for 2025 Lexus NX 350h.



What is the best year to buy a Lexus 450h?


The 2022 Lexus RX 450h is our top pick for the best model year value for the RX 450h. With the 2022, you would only pay, on average, 71% of the price as new, with 83% of the vehicle's useful life remaining.



How much does it cost to replace the battery in a Lexus RX450h hybrid?


between $7,814 and $7,911
The average cost for a Lexus RX450h Hybrid High Voltage Battery Replacement is between $7,814 and $7,911. Labor costs are estimated between $372 and $470 while parts are typically priced around $7,441. This range does not include taxes and fees, and does not factor in your unique location.



How much does it cost to replace the battery in a Lexus hybrid?


$2,000 to $8,000
In fact, hybrid battery replacement costs can vary anywhere from $2,000 to $8,000.



How long does it take to charge a Lexus RX 450h plug-in hybrid?


2.18 hrs. Estimate based on 18 kWh battery charging from 10% to 90% capacity. Level 2 uses an average charging power of 6.6 kW and DC Fast uses an average charging power of 62.5 kW.



How far can the Lexus RX 450h go on electric?


37 miles
An 18.1-kWh battery pack, same as in the NX, feeds those e-motors, and the EPA estimates EV range at 37 miles, same as the NX but less than the RAV4's 42.



Can you drive a Lexus with a dead hybrid battery?


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.



How long does a Lexus 450h hybrid battery last?


Under average driving conditions, you'll need a hybrid car battery replacement roughly once every 150,000 miles or 15 years, whichever comes first.



How many miles per gallon does a Lexus rx450 hybrid get?


Lexus RX 500h AWD: 27 city / 28 highway / 27 combined* Lexus RX 450h+ AWD: 83 MPGe**



Is there any problem with the Lexus RX 450h?


Lexus RX 450h air suspension problems
RX 450h models are fairly heavy and often develop suspension problems. Some owners report leaks in the system, while others report the compressor wears out quickly and has to be replaced.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.