I run all my 2 stroke equipment at 50:1 using a good 2 stroke oil. Stihl recommend 32:1 on their own oil (at least the stone cutter I have says so on the tank), so anywhere between these 2 will be OK. I've never had anything break on me at 50:1.
phil_saunders@bigfoot.com
Phil Saunders
June 2008