That would depend on whether the engine is 2-stroke or 4-stroke (aka 2-cycle & 4-cycle). If the engine does not have an oil filler tube, it is a 2-stroke and oil must be added to the fuel. If it has an oil filler tube, it is a 4-stroke and oil is added through the filler tube.
No
According to the owner's manual, the correct oil/gas ratio for a Toro s200 snowblower is 32:1, or 4 ounces of oil for every gallon of gas.
50:1
32:1.......So 4 ounces of oil per gallon of gas
Yes 10w30 is a good oil for snowblower or lawnmower.
50 to 1
Will damage the engine very quick. Remove asap and flush with at least a quart of oil. Then refill.
be best to drain fuel and replace with correct mixture
40:1
40 to 1.
No you do not put oil in the gas - 4 hp Briggs & Stratton motors are 4 stroke, not 2 stroke in which you do have to add oil to the gas.
As a snowblower is used in the winter use 10w30 weight synthetic oil and change the oil once each year.
4 cycle means that you do not mix oil with the gas. They will have a place for the oil and a place for the gas seperate. Although, not many weedwackers have 4 cycle engines... 2 cycle engines are the ones that you need to mix oil with the gas.