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4cycle
no
2 cycle
Mower engines use 30Wt
The terms 4 stroke, and 4 cycle, have the same meaning. There is no difference in the oil.
All Stihl products use a 50:1 mixture
If it is electric no, petrol powered ones normally do as they would use a "2-stroke" mixture.
Generally 30W of SF or higher rating
Look on the Gas cap of your weedeater. It should tell you the gas to oil ratio. If its not there try looking in the manual or online.
More than likely SAE 30 weight synthetic. Your owners manual will list the recommended oil.
Turn counterclockwise.
Lubricant typeHusqvarna or equiv. at 50:1 Right off the web site I use husky oil