Sta-lube works very good on my Zenoah engines. You can purchase Sta-lube at Balboa Auto (Devonshire and Balboa - Granada Hills).

Or...., cut to the chase and buy Sears Ash-less 2 cycle air cooled engine oil... (not trying to open a can of worms here) but, I've been told by a master auto mechanic, ash-less air cooled engine lubs are pretty much the same. They are most likely manufactured by one of three companies but under a different brand name

That's my 2 cents worth for tonight