Unleaded.

OK, seriously, neither the original engine or the Tiico need fancy gas.  I do
recommend a gas with fuel injector cleaners, like Chevron.

For all who say that the original engine calls for 91 or better, no it
doesn't.  Europeans use a different formula for finding octane.  We use the
R+M/2 method, which makes it 87 american = 91 european.  Read your owner's
manual, or listen to me because I read mine.

Bill Marshall
85 GL Tiico w/cheap gas
Phoenix