The 2008 Lexus IS-F's turning circle is 33.5 ft..
The 2008 Lexus IS-250's turning circle is 33.5 ft..
The 2008 Lexus IS-350's turning circle is 33.5 ft..
The 2008 Lexus GS-450H's turning circle is 36.7 ft..
The 2008 Lexus LX-570's turning circle is 38.7 ft..
The 2008 Lexus LS-460's turning circle is 35.4 ft..
The 2008 Lexus RX-350's turning circle is 37.4 ft..
The 2008 Lexus LS-600H-L's turning circle is 39.4 ft..
The 2008 Lexus GS-350's turning circle is 34.1 ft..
Use exactly what is recommended by Lexus as listed in your owners manual.
I have a 2008 ES350 that has had the oil changed twice. The receipt shows 8 quarts which in my opinion is a lot for that engine. -------------------------------------------------------- From the owner's manual for a 2007 Lexus ES350, it is 6.0 qts (5.7 L) without a filter and 6.4 qts (6.1 L) with the filter. Uses 5W30 oil.
On the 2008, the manual says 5W30. However, many Lexus dealers use 5W20. I assume this is to try and improve gas mileage slightly.