Dons1 Posted November 14, 2012 Share Posted November 14, 2012 Hello I have a simple question,regarding fuel This would be for a 2002 RX-300 what grade of fuel should be used ? I have ben using regular and she has ben running fine. What do you all think of reg vs hi-test Quote Link to comment Share on other sites More sharing options...
lenore Posted November 14, 2012 Share Posted November 14, 2012 It has been discussed over and over, the recommended is premium, but many do as you do. THe computer compensates, but apparently you loose some power....It is a high compression engine....but the marvels of computer control do wonders with these engines.... Quote Link to comment Share on other sites More sharing options...
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