» Wheel & Tire Center

» Sponsors
» Sponsors
Go Back   Pontiac Solstice Forum
Register Home Forum Gallery Owner Registry Search Today's Posts Mark Forums Read

Please Visit our Site Sponsors

SolsticeForum.com is the largest Pontiac Solstice Forum on the internet. Registered Users do not see the above ads.
View Single Post
Old 07-19-2006, 02:24 PM   #6 (permalink)
MomsSol
Administrator
 
MomsSol's Avatar
 
Join Date: Nov 2005
Location: In a frozen land, far away.
Send a message via AIM to MomsSol
Does using 87 Octane cause damage to my engine? Do I get a performance benefit if I use higher octane fuel?
Using 87 Octane, if your engine does not knock, will not damage your engine. The engine software detects knock, and will retard spark timing automatically to eliminate it. If you hear engine knock, it means that your engine has retarded the timing as far as it can go, and you should increase the fuel octane you are using. The base calibration for the engine is set to perform best with 91 octane fuel. Running at 87 octane in most conditions will have some effect in reduced performance (acceleration) but may or may not be detectable and is dependent on the driver. Running low octane fuel in high temperature conditions like today (100 degrees) is most certainly causing your engine to retard timing to eliminate knock. The higher the temperature outside, the more performance effect you may detect using 87 octane fuel.
__________________
I don't suffer from insanity, I enjoy every minute of it!

#139640 '07 NA Sly Fully Loaded 12/1/07
#106614 12/15/05 NA Sly Traded @ 35k Miles


"There are two ways to be fooled: One is to believe what isn't so; the other is to refuse to believe what is so." ~ Soren Kierkegaard

Team Solstice

NASSOA(TM)
Founding Member
MomsSol is offline   Reply With Quote
 
Powered by vBadvanced CMPS v3.1.0

All times are GMT -6. The time now is 02:28 AM.


Powered by vBulletin®. Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.