Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 09-15-2006, 07:41 PM   #1
Registered User
 
Join Date: Jul 2006
Location: Costa Rica
Posts: 147
Knocking sound, do I need Octane booster?

Its hardly audible, but I can hear it sometimes, 2005 Base boxster.
Some knocking sound in the background.
Our fuel in Costa Rica is 90 octane at its best.

Is octane booster a waste of money?
Can it damage anything? (If there is the slightest possibility of damaging anything, I wont use it)

motoadve is offline   Reply With Quote
Old 09-15-2006, 09:12 PM   #2
Registered User
 
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Hi,

Octane booster is a waste of money. At best, it'll raise your octane a point or two, that means 0.1 or 0.2 octane (and the stuff costs the equivalent of about $27/gal). But, if as you say it's barely audible, I doubt you have a problem.

Pull the sparkplugs and read their insulator color. If whitish-gray, you're detonating, switch to a cooler plug. If a tobacco brown, you're OK. If black, you're running cold and fouling. This is a much better indicator than whatever you're hearing. Hope this helps...

Happy Motoring!... Jim'99

Last edited by MNBoxster; 09-16-2006 at 07:58 AM.
MNBoxster is offline   Reply With Quote
Old 09-16-2006, 06:17 AM   #3
Registered User
 
Brucelee's Avatar
 
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
Smile

Jim is dead on with his advice.

__________________
Rich Belloff

Brucelee is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 07:42 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page