normal unleaded fuel mix depending on manufacturers specs some 25-1 some 30-1
Best to use two stroke oil. Mix it with the petrol, (I guess you know this)
4 stroke fuel is straight petrol, it does not have oil in it! If you use it in a 2 stroke engine you will seize the motor. 2 stroke fuel has oil added to it.
Ordinary 87 gasoline, the same you put in a car. It depends if it is a four stroke or two stroke engine. If the engine has a separate filler for oil then plain petrol will do. If there is no separate filler the 25 to 1 petrol /oil mix should be OK.
yes, but you still have to add 2-stroke oil unless you want to burn the engine up.
Yes
No.
I would assume that this is for mixing regular petrol with a 2-stroke engine oil. The mixing bottle normally has an initial level to fill with petrol which should be about 98% of the total volume. You then top up with 2-stroke oil to the final fill level. Therefore there should be two graduation levels near to the top of the bottle.
Chainsaws use a mixture of 80% petrol and 20% 2-stroke oil. You can buy it already mixed, or (more commonly) mix it yourself.
If it is electric no, petrol powered ones normally do as they would use a "2-stroke" mixture.
The recommended oil to use for mixing with gas in a two-stroke engine is two-stroke engine oil.
Consult the manufacturers manual. Not all engines use the same mixture.
clean it after each useespecially the air filtermake sure you use the right oil/petrol mixture, most would be 2% but each model may be differentbear in mind that in daily use most gardening 2 stroke tools last 2-3 years.