How big is the gas tank on a Lexus RX 450h?
The gas tank on the Lexus RX 450h is 65 liters (about 17.2 US gallons).
The RX 450h is Lexus’ first-generation hybrid SUV, produced around 2009–2015. Its fuel capacity is sized to balance the vehicle’s efficiency with a practical driving range. Because specifications can vary by market and model year, always check the door sticker or the owner’s manual for the exact figure on your car.
Official specs and driving implications
Below are the core figures and what they mean for everyday use.
- Fuel tank capacity: 65 L (approximately 17.2 US gallons).
- Variations: Some markets or model years may show minor differences; for the precise figure on your vehicle, consult the owner’s manual or the certification sticker inside the driver’s door.
In practice, the 65 L / 17.2 gal tank provides a balanced range when paired with the RX 450h’s hybrid efficiency. Real-world mileage will vary with driving style, terrain, and climate.
Notes on variants and verification
While the guidance above covers the standard RX 450h, readers should be aware that related variants or regional models could differ slightly. If you own an RX 450hL or a market-specific version, verify the exact capacity on the vehicle’s label or in the official Lexus specifications for your year and region.
Summary
In short, the Lexus RX 450h typically uses a 65-liter (17.2-gallon) fuel tank. For precise figures, especially if you’re shopping used or in a different market, consult the vehicle’s door jamb sticker or the owner’s manual to confirm your exact specification.
What are the common problems with the RX 450h?
Worn CV joints. Damaged motor or transmission mounts. Wheel alignment issues.
How long does a Lexus RX 450h hybrid battery last?
A Lexus RX 450h hybrid battery typically lasts between 150,000 and 200,000 miles, or approximately 15 years, under normal driving conditions. However, this is an average, and factors such as driving habits can cause the battery to last longer or require replacement sooner.
Factors that influence hybrid battery life
- Driving style: Aggressive driving can put more strain on the battery, while a smooth, consistent driving style can extend its life.
- Climate: Extreme temperatures can impact battery performance over time.
- Maintenance: Keeping the area under the rear seats clean can help the battery's cooling system function properly.
- Usage: A battery in a vehicle that is driven frequently will likely have its components cycled more often than one that is not driven as regularly.
Signs of a failing hybrid battery
A warning light appears on the dashboard, The car has difficulty starting, The headlights appear dim, and The engine cranks slowly when starting the vehicle.
What is the difference between Lexus 450h and 450h+?
2025 Lexus RX 450h is a 5-seat SUV that offers 838 L (29.6 ft³) of trunk space behind the rear seats and that opens up to 1308 L (46.2 ft³) with the rear seats folded down. The 5-seat SUV 2025 Lexus NX 450h+ has a 643 L (22.7 ft³) trunk and up to 1328 L (46.9 ft³) with the rear seats stowed.
How big is the gas tank on a RX 450h?
The Lexus RX 450h has a fuel tank capacity of 17.2 gallons (or about 65 liters) for most hybrid models, but the RX 450h+ plug-in hybrid has a smaller 14.5-gallon (55-liter) tank. The specific capacity depends on whether the model is the standard hybrid or the plug-in hybrid version.
- RX 450h (Standard Hybrid): 17.2 gallons (approximately 65 liters)
- RX 450h+ (Plug-in Hybrid): 14.5 gallons (approximately 55 liters)
