91 Octaine in 4KSCQ?!

[Eric Sanborn]

Tyson Varosyan wrote:

>Bottom line, what US Octane fuel is the car designed to use?
>  
>

I would search the archives.  I recall this being discussed before.  As 
you know there are two methods of obtaining the rating.  In the US these 
numbers are averaged.  Off the top of my head Europe uses just one of 
these numbers (the higher one), but I can't remember which one it is. I  
am sure someone can chime in with the answer.  The result is their 
octane numbers are higher.  Most people confuse this as Europe having 
better gas than the US.

As for what fuel to use.  My JT engine got 3 full years of 86 octane and 
loved it.

Maybe someone can answer a question for me.  Why does California have a 
lower octane rating on premium than the east coast?  Every station has 
93 and I think Sunoco has 94.  It must be emissions related, but how?

-- 
Eric Sanborn
'85 4ktq

http://sofadog.net/4ktq/