At 03:56 PM 9/17/2009, Dave Mcneely wrote:
>And despite some claims to the contrary, the fuel in high altitude areas
>in the west IS lower octane than VW recommends.  Try to find regular
>grade gasoline with an octane rating of 87 or higher in Colorado,

Right -- VW or anybody else.  But it does work just fine because of
the altitude, for any car that normally lives on regular.  I wouldn't
take a tankful to sea level without supplementing it with the right
proportion of high-test to bring it up to 87 AKI.

People often forget that the only difference in the higher grades is
increased antiknock quality and sometimes more detergents to keep the
injectors clean.  But now that everyone is using injectors, the
regular grades have sufficient detergent -- we went through all that
in the '80s-'90s.

David