Is the motor a 4 cycle or 2 cycle????

Thinking about it, I would just use the 87 stuff and be
happy with it. Normally a higher octain fuel is used in
higher compression motors. The little engines are
normally for from that.

Tom

George wrote:
I just bought a Stihl string trimmer, at a dealer. I'd read on the net
that Stihl engines require at least 89-octane, but hadn't seen anything
about that in the literature. So, I asked.

The sales guy said that they didn't _need_ high octane, but you should
_use_ "premium" gas ("93"), because it's "cleaner", that it's filtered
more, and that "cheaper" gas would gum up the carb.

I was a little surprised at this, but there's a lot I don't know. I
don't see where he had any reason to lie - I was already buying the
thing.

Does anyone know whether there's any truth to this?

Thanks,
George