"alfred" > wrote in news:8%4%h.422$dj2.148@trndny02:

> Thanks, I kind of thought that would help. I have been told that a
> manual is better in the snow than without, but never tested it to see
> if that is true.
>
> Another thing I wanted to know about is the premium gas requirement
> for the Si. How set in stone is this? I am curious because its really
> just a 2.0 4 cyl



....with a compression ratio of 11:1. It's the compression ratio that
primarily determines octane requirement, not the number of cylinders or the
displacement. This engine probably also has a fairly aggressive spark
timing curve.



> and i cant figure out why they require premium for it
> and if I used regular unleaded what would happen?



From that car's Owner's Manual:
"Your vehicle is designed to operate
on premium unleaded gasoline with a
pump octane number of 91 or higher.
Use of a lower octane gasoline can
cause occasional metallic knocking
noises in the engine and will result in
decreased engine performance. Use
of a gasoline with a pump octane
number less than 87 can lead to
engine damage."



--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/