Quote:
Originally Posted by Kestas
Agreed -- that's why I opt for regular.
Years back I had a 1957 Chevy. At the bottom of the distributor was an adjustment where you could choose the octane you were using. It'd be a nice feature around now.
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That's standard issue on every modern efi engine equipped with a knock sensor and it's done automatically. You'll only notice the difference between 87 and 91 when you step on it.