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thstone · 03-28-2013, 05:22 PM

Higher octane allows the ECU to advance the timing to get slightly more power. Very slightly. The ECU will automatically adjust the timing to account for 91 octane. No worries.

03-28-2013, 05:22 PM	#3
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	Higher octane allows the ECU to advance the timing to get slightly more power. Very slightly. The ECU will automatically adjust the timing to account for 91 octane. No worries. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor