How much octane does your down-under Coleman fuel have?
You may well do your engine not a big favour, and be in for a large repair if octane is below your engine's requirements.

Aspen fuel (an alcylate), has 93 pump octane, and no stink. It burns as clean as leadfree gas or coleman. Available in the better garden appliance shops that care for Husqvarna. Rich mixture tolerance is slightly smaller than with gas.