List, I followed Doktor Tim's advice and called Campbell/Nelson, a local
VW dealer in our area, about what octane fuel the RV, HT, RD, PF, 3A or
ABA engines from VW (all with high compression and knock sensor)
require.  Their service dept. said these engines will all do fine with
87 octane with no degradation in performance.  So there we have it...you
can have your cake and eat it also.

-Dana-