I use 10/30w full synthetic from Castrol.
Visit clublexus.com and you'll see many a discussion on the topic!
7 quarts
4.5L
Yes
For a tune up on a Lexus LS 400 you will want to purchase spark plugs, wires, a cap and rotor, and new gas and oil filters. You should do an oil change when you do a tune up.
5.1 Qts. with the filter
Oil type
The recommended oil type for a 2004 Lexus GS 300 is 10 W 30. The oil capacity for the car is approximately 5.7 quarts.
lexus rx300 1999-2003
The correct engine oil is 5W-30 (synthetic or non-synthetic). Please refer to your owner's manual or contact your local Lexus dealer for details.
5w30
5w30
5W-30 Synthetic Oil.