Thread: Octane
View Single Post
Old 06-23-2008, 11:25 PM   #11
pk2
Registered User
 
Join Date: Aug 2007
Location: Tustin Ca.
Posts: 449
Quote:
Originally Posted by hqduong
Out of curiosity, does anyone know why in California the fuels are such crap?..the highest you can get is 91. What's the reason behind that?...good octane booster?
--------------------------------------------------------------------------------------
Who knows why California only sells 91 oct. Who know why you want more. Octane boosters are a joke. You can get 100oct here and dilute it down to your hearts delight with 91oct. My understanding though is anything over the recommended (93 in this case ) is a futile pursuit.

Before I supercharged my car, 91 was fine for me (along with hundres of thousand P-car people here). But, with the added heat produced by act of compressing the air and the mechanical heat from the blower, it's not hard to burn holes in the pistons with a blowers on 91oct.

I've also run my car with strait 100oct and I can't say I noticed a difference at all. I Now mix 100 oct. with 91 (about 2:8) to get 93. I also have experimented using toluene (118oct supposedly, a regular additive to pump gas) to bump up my octane. My EGT's (exhaust gas temps.) remain sane either way. Both come out to be about $7.00/gallon..

If you really want to spend the money, Google “race fuel California” and you'll find places near you to get 100oct (Usually 76 stations).

Regards, PK
__________________
http://img87.imageshack.us/img87/163...58x6ir4.th.jpg
99 Supercharged 2.5L
pk2 is offline   Reply With Quote