2006 Lexus RXCoolant Type & Capacity

OEM spec from the factory service manual for the AWD variant.

Quick Answer

Coolant Type

TOYOTA Super Long Life Coolant or equivalent

Capacity

10.00 QTS.

9.46 L

Variant

AWD

Note: DO NOT use plain water alone.
Source: Factory service manual β€” 2006 Lexus RX AWD. View full manual section β†’

Frequently Asked Questions

What type of coolant does a 2006 Lexus RX take?
The 2006 Lexus RX requires TOYOTA Super Long Life Coolant or equivalent. The exact spec may vary slightly by engine variant β€” this page shows the OEM recommendation for the AWD configuration.
How much coolant does a 2006 Lexus RX hold?
The 2006 Lexus RX cooling system capacity is 10.00 QTS. (9.46 L).
Can I use universal coolant in my 2006 Lexus RX?
It is strongly recommended to use coolant that meets the TOYOTA Super Long Life Coolant or equivalent specification. Universal coolants may not provide the correct corrosion protection for your engine's materials.
What happens if I use the wrong coolant in my 2006 Lexus RX?
Using coolant that does not meet the OEM specification can cause corrosion, gasket damage, and overheating. Always verify the correct coolant type before topping off or flushing the system.