You can also get a fuel catalyzer to drop in the tank, which claims to allow the use of unleaded in engines which call for leaded. Have a look at
This LInk for some extra info.
I don't know if these things do any good at all, but I have been using one for years and they don't seem to do any harm.
[ This message was edited by: Slinky on 2004-04-02 11:43 ]