Herk#418 Posted August 4, 2009 Report Share Posted August 4, 2009 I just moved to Colorado Springs, Colorado. I have a 2008 Shelby GT. I can't find anything higher than 91 Octane here. I called the dealer and he said that it would be fine. He said 93 is not necessary because of the altitude and that's why I can't locate any stations. Can anyone help me out here. I don't trust the dealership. i DON'T WANT TO DAMAGE THE ENGINE. Can I run on 91 Octane? Link to comment Share on other sites More sharing options...
ingram4868 Posted August 4, 2009 Report Share Posted August 4, 2009 It is tuned for 91 octane. That is all we get on the left coast. Link to comment Share on other sites More sharing options...
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