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I just bought a 2008 Civic SI and the dealer filled it up with 87 octane. I have read the threads about 87 and I want to put 93 in it as soon as possible. Will it cause any damage driving it with 87 especially since it is in the break-in period and had 3 miles on it when I drove it off the lot? I haven't heard any pinging or detonating and everything sounds normal. I'm sure the cooler weather, around 40 degrees, is helping with the detonation. I just want to be sure that it will be fine to run the tank out so I can go to 93.
link added by Qshooter151 on 9/24/08
http://www.8thcivic.com/forums/mech...at/75975-si-87-octane-gas-threads-merged.html
link added by Qshooter151 on 9/24/08
http://www.8thcivic.com/forums/mech...at/75975-si-87-octane-gas-threads-merged.html