That is assuming you are using a 30:1 ratio oil which would be unlikely nowadays. Use Stihl 2-stroke oil and it's ONLY to be mixed at 50:1 ratio. It's the oil that dictates the rate of dilution and not the machine and certainly NOT the cc of a machine.
pleasant, November 2011
30cc two stroke engine/40:1 ,that's forty parts fuel/gas, and one part oil .
