8th Generation Honda Civic Forum - View Single Post - SI with 87 octane gas *Threads merged*
View Single Post
Old 01-17-2009, 04:34 PM   #176 (permalink)
MaddMatt
Senior Member
 
Join Date: Jun 2008
Location: Charlotte, NC
Age: 39
Posts: 110
Matt
Quote:
^ Go ahead and give it a shot.
I have. Several times. At least 3-4 times last fall when there was no gas to be had in the southeast except 87 octane (if you could even find that), and once more when I just flat brain-farted a few weeks ago and put 87 in. At no point did I hear any knocking, and the car runs like a champ. And fuel mileage was completely unaffected.

Amazing....

Too many posts here make it sound like you've destroyed the engine by running it just 1 mile on 87 octane. Nothing could be further from the truth.
MaddMatt is offline   Reply With Quote