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CaptainObvious · 02-21-2009, 05:06 PM

It looks like I have a choice between 91 octane gas, or 93 octane E10. What would you choose?

If I understand it right, the 91 has more energy. However, the E10 shouldn't pre-detonate as easily, which apparently lets the ECU advance timing for max power.

I'm primarily interested in performance, but also problem avoidance.

02-21-2009, 05:06 PM	#1
CaptainObvious Registered User Join Date: Feb 2009 Location: Omaha, NE Posts: 22	91 octane gas or 93 octane E10 ? It looks like I have a choice between 91 octane gas, or 93 octane E10. What would you choose? If I understand it right, the 91 has more energy. However, the E10 shouldn't pre-detonate as easily, which apparently lets the ECU advance timing for max power. I'm primarily interested in performance, but also problem avoidance.