2009 Lexus RXOil Type & Capacity

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

Quick Answer

Oil Type

API - SAE 5W-30

Capacity (w/ Filter)

6.40 QTS.

6.05 L

Variant

AWD

Note: 5W oils are for areas where the ambient temperature is -13Deg.F (-25Deg.C) or above. 10W oils are for areas where ambient temperature is -4Deg.F (-20Deg.C) or above. Oils with smaller figures are better for engine starting in cold weather and fuel efficiency.
Source: Factory service manual β€” 2009 Lexus RX AWD. View full manual section β†’

Frequently Asked Questions

What type of oil does a 2009 Lexus RX take?
The 2009 Lexus RX requires API - SAE 5W-30. The exact spec may vary slightly by engine variant β€” this page shows the OEM recommendation for the AWD configuration.
How much oil does a 2009 Lexus RX need?
The 2009 Lexus RX takes 6.40 QTS. (6.05 L) of engine oil with the filter replaced.
Can I use synthetic oil in my 2009 Lexus RX?
Yes β€” synthetic oil that meets the API - SAE 5W-30 specification is acceptable and often preferred for better protection and longer change intervals.
What happens if I use the wrong oil in my 2009 Lexus RX?
Using oil that does not meet the API - SAE 5W-30 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.