What kind of gas do you guys use for your 2-Stroke equipment? The local Stihl shop says 89 octane is the minimum, but you might as well get premium to ensure that you're going to be safe. As far as I'm concerned I've always ran regular 87 octane in all landscaping equipment I own. 2-stroke and 4-stroke. Never had a problem, but I haven't owned a Stihl product until now. Thanks for the input.