Use 91 octane or higher octane rating premium gas for the 2009 Lexus RX350
The 2009 Lexus IS-350 runs on premium unleaded (required).
The 2009 Lexus IS-F runs on premium unleaded (required).
The 2009 Lexus IS-250 runs on premium unleaded (required).
The 2009 Lexus GS-350 runs on premium unleaded (required).
The 2009 Lexus LS-460 runs on premium unleaded (required).
The 2009 Lexus LX-570 runs on premium unleaded (recommended).
The 2009 Lexus ES-350 runs on premium unleaded (required).
The 2009 Lexus LS-600H-L runs on premium unleaded (required).
The 2009 Lexus IS-250 has a 6-speed manual.
The 2009 Lexus IS-350 has a 6-speed shiftable automatic.
The 2009 Lexus IS-F has a 8-speed shiftable automatic.