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How many gallons of gas does a 2018 Lexus RX 350 hold?

The 2018 Lexus RX 350 has a fuel tank capacity of 19.2 gallons. This mid-size luxury SUV from Lexus is known for its comfortable ride, premium interior, and efficient powertrain, which includes a 3.5-liter V6 engine paired with an 8-speed automatic transmission.


Fuel Tank Capacity of the 2018 Lexus RX 350


The 2018 Lexus RX 350 has a standard fuel tank capacity of 19.2 gallons. This is a common tank size for mid-size SUVs in this class, providing a good balance between fuel efficiency and driving range.


The fuel tank size is an important specification for any vehicle, as it determines how far you can travel on a single fill-up. A larger fuel tank means you can go longer between stops at the gas station, which can be especially useful for long road trips or commutes.


Fuel Efficiency and Driving Range


The 2018 Lexus RX 350 is rated by the EPA to achieve 20 mpg in the city and 27 mpg on the highway. With a 19.2-gallon fuel tank, this translates to a driving range of around 384 miles on the highway or 384 miles in the city before needing to refuel.


Of course, real-world fuel efficiency and driving range can vary depending on factors like driving style, road conditions, and cargo load. But the 2018 Lexus RX 350's fuel tank capacity and EPA ratings suggest it should be able to handle most daily driving needs without frequent stops for gas.


Refueling the 2018 Lexus RX 350



  • The fuel tank is located on the driver's side of the vehicle.

  • The fuel filler door is opened by pressing the release button located on the driver's side door jamb.

  • It's recommended to use premium unleaded gasoline with an octane rating of 91 or higher for optimal performance and fuel efficiency.

  • The fuel tank capacity of 19.2 gallons means you'll need to refill the tank when the low fuel warning light illuminates, typically when around 2-3 gallons of fuel remain.


Knowing the fuel tank capacity of your vehicle is important for planning trips, monitoring fuel levels, and ensuring you don't run out of gas unexpectedly. The 2018 Lexus RX 350's 19.2-gallon tank provides a good balance of driving range and efficiency for this popular mid-size luxury SUV.

What is the life expectancy of a RX350?


250,000 miles
The average vehicle can register around 150,000 miles on the odometer. When it comes to the Lexus RX 350, how long does it last? When properly cared for and driven, the Lexus RX can last for 250,000 miles or more.



What is the best year of RX350 to buy?


If you're looking for a used RX 350, the best model years include 2011, 2015, and 2018 due to aspects like reliability, reviews, and model innovations. However, you'll want to stay away from the 2007, 2008, 2010, and 2017 RX 350s as they, unfortunately, have experienced significant issues.



How many miles can a Lexus RX 350 go on a tank of gas?


2022 Lexus RX 350 Driving Range
The 2022 Lexus RX 350 has a max range of at least 570 miles using the hybrid version. Owners of the Lexus RX 350 can expect an estimated 27 miles per gallon when driving on the highway and 20mpg around the city to make a combined 23mpg.



What is the most common problem with Lexus RX350?


Top Lexus RX350 Problems

  • Massive Oil Leak and Loss of Oil Pressure.
  • Air Conditioning Fault Due to Failed AC Amplifier.
  • Sofrware Upgrade For GPS, Radio, and Heater Operation.
  • Airbag Warning Light With Code B0111 and/or B0116.
  • Check Engine Light With Codes Indicating Fault With the Variable Valve Timing System.



How long do Lexus RX 350 engines last?


250,000 miles
When properly cared for and driven, the Lexus RX can last for 250,000 miles or more. This longevity is thanks to the following: Performance: The Lexus RX has three engines from which to choose, all of which are highly dependable.



Are Lexus RX 350 good on gas?


Below, we've listed the 2024 Lexus RX gas mileage for each trim level: 2024 Lexus RX 350 FWD: 22 mpg city / 29 mpg highway. 2024 Lexus RX 350 AWD: 21 mpg city / 28 mpg highway. 2024 Lexus RX 350 Premium FWD: 22 mpg city / 29 mpg highway.



How big is the gas tank on a 2018 Lexus RX 350?


Fuel & MPG
364.8/499.2 mi. 19.2 gal.



How many miles will a Lexus RX 350 last?


250,000 miles
So, how long can your RX run? As long as you care for it and take care of all maintenance, it's easy to see your odometer hitting the 200,000-mile mark. Some drivers have seen their RX reach 250,000 miles or higher.



How many miles per gallon does a 2018 Lexus RX 350 get?


Fuel economy estimates are around 20 mpg in the city and 27 mpg on the highway with front-wheel drive and 19/26 mpg with all-wheel drive. Those estimates are good for the class.



How many gallons is a Lexus RX 350 full tank?


19.2-gallon
The Lexus RX 350 has a 19.2-gallon gas tank, a great size for an SUV of this caliber. If you want to have more driving time out on the road and less at the pump, this gas tank is going to help you do exactly that.


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.