yes
No, because the oil is for cars! :-)
any quality bar oil will work fine.
You can use regular 2-stroke oil, which you should be able to get at severla places.
Use regular Stihl 2 cycle oil. You mix it 50:1.
I use 4oz. per gallon of gas.
If you use gasoline with no oil mix the engine will not get any lubrication and will overheat and lock up.
The mix ratio is 50:1, but be sure to use a good 2 cycle oil such as Husqvarna's or Echo's. Do use a motor boat or motorcycle 2 cycle oil. Those are not rated for the small engines like used in the 141 chainsaw. Best bet is to buy the oil at a reliable mower shop.
yeah, 10-w30 is a pretty good to use.
To use the chainsaw just hold B
axe+electricity=chainsaw
i use a chainsaw every weekend,and have never seen one with a belt