http://www.gowesty.com/library_article.php?id=1054

Hector
1990 Carat 'Ursula'

On Fri, Mar 11, 2011 at 3:05 PM, The Bus Depot <vanagon@busdepot.com> wrote:
>> Is there anyone who is using 87 Octane gas in their
>>  Vanagon?  If so, has it caused any problems?
>
>
> U.S. and European octane rating methods are different.  Europe uses RON
> ratings; we use (R+M)/2 (otherwise known as AKI).  Our 87-octane Regular
> would be labeled as approximately 91 octane in Germany, so it meets VW
> recommendations.  I have never had any problems using it in any of my
> Vanagons.
>
> - Ron Salmon
>  The Bus Depot, Inc.
>  www.busdepot.com
>  (215)  234-VWVW
>
> _____________________________________________
> Toll-Free for Orders by PART # :  1-866-BUS-DEPOT
>