Quote:
Originally Posted by smithnc
The highest octane fuel I've found in Colorado is 91. Can I run the 93 octane tune with 91 octane fuel? I'm not sure how elevation affects this.
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The canned tune says it's for 93 but it is very safe as far as timing goes. I use it for my 91 tune now. I think it only has like 14 degrees timing at WOT. Just check and see if you get any KR with it I'm sure you would be fine.