The RX 330 uses SAE 5W-30 motor oil, API-certified; expect about 5.3–5.5 quarts with the filter when you change the oil.
The RX 330 runs a 3.3-liter V6 (3MZ-FE). For most climates, Lexus recommends 5W-30. You can use conventional or synthetic oil as long as it meets API specifications, and you should follow the owner's manual or service sticker for exact capacity and change intervals.
Recommended oil grade and specs
For model years 2004 through 2006, Lexus generally specifies SAE 5W-30 motor oil. Use oil that carries the API service certification, and you may choose either conventional or synthetic depending on your maintenance goals and climate.
Oil capacity and change interval
Oil capacity is roughly 5.3–5.5 quarts with the filter. Change intervals vary by driving conditions and oil type: about every 5,000 miles with conventional oil, and up to 7,500–10,000 miles if using high-quality synthetic and favorable driving habits. Always refer to the manual for your exact year.
Check, top up, and maintenance tips
Check the level on a warm engine on level ground using the dipstick, top up sparingly to reach the full mark, and avoid overfilling. Use the correct grade listed on the filler cap or in the manual, and keep a maintenance log for reference.
Where to verify in your manual
Your vehicle’s owner's manual or maintenance booklet provides the official specification for your RX 330. If the manual isn’t handy, you can contact a Lexus dealer or check Lexus' official support resources for your exact year and climate zone.
Summary
In brief, a Lexus RX 330 takes SAE 5W-30 motor oil, API-certified, and it can be either conventional or synthetic. Plan for about 5.3–5.5 quarts with a new filter, and always confirm the exact specification for your year and driving conditions in the manual or with a dealer.
Which oil Is good for Lexus 330?
Mobil 1 5W-30 Extended Performance High Mileage Motor Oil (5 Quarts) Mobil 1 M1-102A Extended Performance Oil Filter.
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2026 Lexus RX
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Which engine oil Is best for a Lexus RX350?
synthetic SAE 0W-20 motor oil
For most Lexus RX models, Lexus recommends synthetic SAE 0W-20 motor oil.
What oil goes in a Lexus RX330?
5W-30
Valvoline – High Mileage 5W-30 Full Synthetic Engine Oil, Prevents Leaks (Part No. 881169)