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May 9, 2008 | 06:32 PM

itzsuperhenry

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Honda-Tech Member

Joined: May 2008

Posts: 134

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From: tustin, ca, united states

Gas

Hey i drive a honda civic 1999 si and in the manual it says to take premium but im wondering if it would be bad to start using regualr gas?

May 9, 2008 | 06:36 PM

Padawan

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Joined: Jan 2001

Posts: 11,539

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From: Mustafar

Re: Gas (itzsuperhenry)

Regular fuel won't harm the engine, but you won't experience maximum performance or fuel economy from it.

May 9, 2008 | 06:44 PM

Frickr

Junior Member

Joined: Sep 2007

Posts: 891

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From: Hettinger, North Dakota, US

Re: Gas (Padawan)

if i use anything below 91 octane, i get a slight knock out of my motor. if you do use some regular, then put in some octane boost.

May 9, 2008 | 08:41 PM

riceburnerryan

Honda-Tech Member

Joined: Nov 2004

Posts: 1,130

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From: WA

yeah i remember one time i used 89 in my GSR and it was boggy and it didnt like it very much

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