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Old 02-06-2019, 04:32 PM   #5
Who's askin'?
 
maytag's Avatar
 
Join Date: Mar 2018
Location: Utah
Posts: 2,448
Quote:
Originally Posted by Ciao View Post
I'm thinking of running 60% 91 Octane and 40% 100 Octane to average 93 Octane which the manual states is the best Octane
Higher altitude you can never find the higher octane stuff like down low. But you don't need it, either. Air density is too low. Use 91. It's appropriate for your car at that altitude.

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