Yes, but it isn't recommended.
You may lose performance and also mileage.
Use the recommended fuel grade in the manual.
Usually premium unleaded cars should be at least 91.
yes premium gas is required
Premiun Unleaded is required with at least a 91 octane rating.
Use 91 octane or higher octane rating premium gas for the 2009 Lexus RX350
The 2007 Lexus IS-250 is a gas-powered vehicle.
The 2009 Lexus IS-250 is a gas-powered vehicle.
The 2010 Lexus IS-250 is a gas-powered vehicle.
The 2006 Lexus IS-250 is a gas-powered vehicle.
The 2013 Lexus IS-250 is a gas-powered vehicle.
The 2011 Lexus IS-250 is a gas-powered vehicle.
The 2008 Lexus IS-250 is a gas-powered vehicle.
The 2012 Lexus IS-250 is a gas-powered vehicle.
The 2014 Lexus IS-250 is a gas-powered vehicle.