8th Generation Honda Civic Forum - View Single Post

VanSin23 · 11-28-2008, 10:23 PM

I bought my 08 Si about 3 weeks ago and I did not even think abou the octane level I was puttin gin it. I came from Mazda 3 and used 87 octane all the time. I even used 87 in my 2001 jetta turbo. I never saw any advers affects in the VW at all. I did not see the premium gas only sticker on my SI until I filled up the first time with 87 and it was too late by then. I did not Vtec as much with the worry of damage and I got 31 mpg out of that tank. Since then I have only ran 93 octane and I am only gettign 28-29 mpg. I drive 75% hwy miles. My buddy had a 3.5 TL and has only used 87 since brand new with no probs. His service guy told him as long as he did not hear spark knock, to not worry about it. Since gas has gone back down, I am not worried about using 93. I don't keep cars long so if I had to run 87 and it hurts engine life, it would not be my prob anyway. LOL

11-28-2008, 10:23 PM	#130 (permalink)
VanSin23 Senior Member Join Date: Nov 2008 Location: Arcadia, NC. Posts: 205 Van (08 ASMFA5) iTrader: 0 / 0%	I bought my 08 Si about 3 weeks ago and I did not even think abou the octane level I was puttin gin it. I came from Mazda 3 and used 87 octane all the time. I even used 87 in my 2001 jetta turbo. I never saw any advers affects in the VW at all. I did not see the premium gas only sticker on my SI until I filled up the first time with 87 and it was too late by then. I did not Vtec as much with the worry of damage and I got 31 mpg out of that tank. Since then I have only ran 93 octane and I am only gettign 28-29 mpg. I drive 75% hwy miles. My buddy had a 3.5 TL and has only used 87 since brand new with no probs. His service guy told him as long as he did not hear spark knock, to not worry about it. Since gas has gone back down, I am not worried about using 93. I don't keep cars long so if I had to run 87 and it hurts engine life, it would not be my prob anyway. LOL Last edited by VanSin23; 11-28-2008 at 10:24 PM.