8th Generation Honda Civic Forum - View Single Post

icewildabeast · 09-23-2008, 04:43 AM

87, it'll knock, and the timing will be retarded (not to be mistakened with the "idiot" retard, but timing set back), and then you'll lose power, and then everything "will be fine"
Just putting in 87 once is not going to do anything to your engine. Drive it normally (not spirited/vtec) and it wont even have to retard timing.

I can say all of this out of experience.
I did a test, was putting in 87 octane for 3 months. Only noticable difference was loss of power after my first time knocking (hard acceleration in high heat environment). Sort of felt like AC was on, without it actually being on.

when i put 93 in again, i didnt feel any noticable difference until after about 2 1/2 tanks when i believe the timing was back to normal again.

09-23-2008, 04:43 AM	#64 (permalink)
icewildabeast Senior Member Join Date: Nov 2007 Location: Chicago, IL Posts: 1,944 Will	87, it'll knock, and the timing will be retarded (not to be mistakened with the "idiot" retard, but timing set back), and then you'll lose power, and then everything "will be fine" Just putting in 87 once is not going to do anything to your engine. Drive it normally (not spirited/vtec) and it wont even have to retard timing. I can say all of this out of experience. I did a test, was putting in 87 octane for 3 months. Only noticable difference was loss of power after my first time knocking (hard acceleration in high heat environment). Sort of felt like AC was on, without it actually being on. when i put 93 in again, i didnt feel any noticable difference until after about 2 1/2 tanks when i believe the timing was back to normal again.