jkp Posted July 27, 2015 Share Posted July 27, 2015 The manual calls for 91 octane, is there any benefit to using the 93 ? I have been experimenting using different fuels, including 91 ethanol free. I would appreciate others findings . 2005 Outback 3.0 R Link to comment Share on other sites More sharing options...
patrikman Posted December 5, 2015 Share Posted December 5, 2015 No benefits, 91 is just fine. Link to comment Share on other sites More sharing options...
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