[font="Verdana"][/font][size="4"][/size]I have not yet got an answer to the actual requirement for the gasoline octane. I have met people who have been using 87 octane in their SUV and say there is no problem. I just purchased a preowned RX 330 of 2004 and do not know if I can use 87 Octane gas. Or is it mandatory to use 91 octane? Can some one please help?