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I run 93 only.
Just finishing up my H/C swap and my CR will be at 12.2:1 .... So yah... 93.
i still have stock internals, so just boltons for now
other wise just 93 all the time
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it's 100% pointless to run anything over 91 octane since that is all the computer requires. you will see no more horsepower or fuel economy by using over 91 octane. however, you will lose power and mpg if you use LESS than 91 octane since the computer retards timing to eliminate knock. that being said, i use 91 octane. anything else is throwing money away. use 93 octane if 91 is not available or if you ping on 91.
it's 100% pointless to run anything over 91 octane since that is all the computer requires. you will see no more horsepower or fuel economy by using over 91 octane. however, you will lose power and mpg if you use LESS than 91 octane since the computer retards timing to eliminate knock. that being said, i use 91 octane. anything else is throwing money away. use 93 octane if 91 is not available or if you ping on 91.

