2006 Civic Si Fuel Problem

Thread Tools

Search this Thread

Jul 8, 2009

tywhit08

Thread Starter

Registered!!

Joined: Jun 2009

Posts: 4

Likes: 0

Rep Power: 0

tywhit08 is an unknown quantity at this point

2006 Civic Si Fuel Problem

My wife has been using regular grade fuel in my civic. Now there is a knock under the hood. Can anyone tell me what to do?

Jul 8, 2009

rocksinger45

Registered!!

Joined: Feb 2009

Posts: 129

Likes: 0

From: Los Angeles

Rep Power: 0

rocksinger45 is an unknown quantity at this point

Re: 2006 Civic Si Fuel Problem

Don't use cheap fuel, the owners manual says to use premium fuel only (91 octane or better) , the reason why I didn't buy an SI.

Jul 8, 2009

One_Fit_Civic

Registered!!

Joined: May 2009

Posts: 69

Likes: 0

Rep Power: 0

One_Fit_Civic is an unknown quantity at this point

Re: 2006 Civic Si Fuel Problem

its a K20 bro. it need 91 to run anything less and your be knockin the valves

Jul 9, 2009

Devani

Registered!!

iTrader: (2)

Joined: May 2001

Posts: 1,145

Likes: 0

From: New Jersey, US

Rep Power: 335

Re: 2006 Civic Si Fuel Problem

as long as you don't drive like a NASCAR driver, you should be fine...but having regular gas for SI is not good....try premium gas and see what it does...

Jul 14, 2009

onequickfa5

Registered!!

Joined: Jul 2009

Posts: 16

Likes: 0

From: charlotte

Rep Power: 0

onequickfa5 is an unknown quantity at this point

Re: 2006 Civic Si Fuel Problem

just curious..what kind of mpg where u getting running 87...useing 93 i get 34mpg

Related Topics

Thread

Thread Starter

Honda Civic Forum

Replies

Last Post

2006 Civic Engine block crack KNOWN DEFECT

Xuhme

Cracked block early R18 Overheating

Aug 7, 2023 03:40 PM

2002 Immobilizer - bypass - remove

CarStuff

Safety/Security Items - SRS, Keys, Immobilizer, airbags, ABS

Dec 6, 2020 12:52 PM

2008 crv Ac issues...

usajags84

General Automotive Discussion

May 10, 2015 08:11 AM

2003 Hybrid with hesitation/ stuttering at low rpms/speed

dooner24

Mechanical Problems/Vehicle Issues and Fix-it Forum

Apr 14, 2015 07:51 PM