new to me stihl Fs 90 R. Gas/oil ratio to use?

[LaLawnGuy]

Originally Posted by olebrooklawn

No I don't know them. I got a dumb question? Do I need to use 4 stroke oil instead of 2 stroke?
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They're part-timers there in Brookhaven, I'd just use Stihl HP Ultra in everything. Go in with another LCO (if you need to), and buy it by the case.
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[grincon]

Originally Posted by olebrooklawn

No I don't know them. I got a dumb question? Do I need to use 4 stroke oil instead of 2 stroke?
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Thats funny but not a dumb question. Use 2 stroke oil.