Quote:
Originally Posted by Bonburner
91 octane is the minimum requirement for FR-S.
If you really want to bump it more look for some octane boosters, dunno how that fares.
I was thinking about it but changed my mind on trying
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Common, store bought, octane boosters add a few points. Ie, 91 + .1 , .2, .3... You'll end up with 91.1, 91.2, 91.3. NOT 92, 93, 94... They are tenths..
As you said though, 91 is the minimum. I was told by a tech on the fr-s (not a shop tech) that we shouldn't recommend less as the knock/retard of timing/det. isn't what you'd expect