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How big is the gas tank on a Lexus 450h?


The Lexus RX 450h is a popular luxury hybrid SUV known for its fuel efficiency, comfort, and advanced features. One of the most common questions potential buyers and owners ask is about the size of its gas tank. Understanding the fuel tank capacity is essential for planning long trips and estimating fuel costs. In this article, we’ll explore the gas tank size of the Lexus RX 450h and what it means for your driving experience.


Fuel Tank Capacity of the Lexus RX 450h


The gas tank size of the Lexus RX 450h varies slightly depending on the model year and trim level. However, for most recent models, the fuel tank capacity is approximately 17.2 gallons. This capacity allows the RX 450h to offer an impressive driving range, especially when combined with its hybrid powertrain, which optimizes fuel efficiency.


Why Does Fuel Tank Size Matter?


Knowing the size of your vehicle's gas tank is important for several reasons:



  • Driving Range: A larger tank combined with good fuel efficiency means fewer stops at the gas station, making it ideal for long road trips.

  • Fuel Budgeting: Understanding how much fuel your car can hold helps you estimate costs and plan your refueling schedule.

  • Convenience: With a hybrid like the RX 450h, the combination of a decent-sized tank and excellent mileage means you can enjoy extended periods of driving without interruption.


How the Hybrid System Enhances Efficiency


The Lexus RX 450h is equipped with a hybrid powertrain that combines a gasoline engine with electric motors. This system not only reduces fuel consumption but also extends the vehicle's range. With a full tank of gas and a fully charged hybrid battery, the RX 450h can travel hundreds of miles before needing to refuel.


Conclusion


The Lexus RX 450h’s gas tank size of approximately 17.2 gallons, paired with its hybrid efficiency, makes it a practical choice for drivers who value both luxury and economy. Whether you're commuting in the city or embarking on a long journey, this SUV offers the range and reliability you need. If you have any questions about maintaining your Lexus RX 450h or other vehicles, feel free to reach out to us at Kevin's Autos for expert advice and service!


Frequently Asked Questions

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


37 miles
HIGHS: Worthwhile EV range, cosseting ride, on-brand interior. 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. The RX weighs 379 pounds more than its smaller sibling and is 466 pounds heavier than the Toyota.



How long does Lexus RX 450h hybrid battery last?


between 3-5 years
2021 Lexus RX 450h batteries frequently last between 3-5 years, but this is variable depending on the type of battery, weather conditions, driving habits, and more. You can prolong the life of your RX 450h battery by: Keeping your vehicle stored indoors away from extreme swings in temperature or climate.



Is there any problem with the Lexus RX450h?


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.



What happens if you accidentally put 87 instead of 91 in a Lexus?


Use of unleaded gasoline with an octane rating lower than what is listed for your model year vehicle could potentially result in engine knocking. If the octane rating used is less than required, damage to the engine may occur and which could void the vehicle warranty.



How long does a Lexus 450h hybrid battery last?


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



What is the range of Lexus 450h hybrid?


37 miles
Green and Serene
In the real world, most prospective RX450h+ buyers will gloss over its figure-eight performance and focus on this number instead: 37 miles. That's its estimated all-electric range, which jibes with what we experienced during our time with the plug-in electrified RX.



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.



Does RX 450h require premium gas?


You can put premium gas in your Lexus RX, and it can provide better performance, but it's not a requirement. Any gas that's put in your Lexus RX shouldn't be higher than 15% ethanol. If gasoline at the pump has more than 15% ethanol, or it's labeled as a flex-fuel, it shouldn't be used in your RX.



How many miles per gallon does a 450h get?


The 2024 Lexus RX 450h+ is the first plug-in hybrid (PHEV) in the lineup. It earns a remarkable 83 miles per gallon-equivalent (mpg-e). Ensuring a terrific value, as Lexus always does, the RX PHEV comes in the Luxury grade.



Is Lexus RX 450h expensive to maintain?


Maintaining a Lexus RX 450h will cost $517 per year on average through the first 5 years of new ownership. Costs and probability of repair increase over time.


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.