Most oil suppliers now do pre-measured bottles of oil.
The easiest way for measurement is :
100ml oil to 5ltr petrol.
it is the ratio of gas to oil 32 parts gas 1 part oil. it is easier to mix it if you have a mixing container.
50 to 1 is a mix ratio of gas to oil for two cycle motors and the type oil is called two cycle mixing oil
50 to 1 oil and gas mixture
50:1
The mixing ratio using Stihl brand oil is 50:1 or 2.6 oz. oil per gallon of gas. Stilhl oil is recommended though a name brand oil for another air-cooled equipment brand could be substituted. Most are the same ratio.
for a bike the ratio is usually 32:1. I mix it right in the gas can. I use 20l exactly of gas and put in 625ml of mixing oil.
if it is a cr 60 you would be fine mixing your gas to oil ratio at 32:1
When mixing 2 stroke oil , the oil to gas ratio should be on the bottle . Different brands of oil mix different . But the bottle should tell you how much oil to gas to get the 32-1 mix that you want .
50 parts gas to 1 part oil. So the amount of oil would be 1/50th the amount of gas.
When mixing oil with gas you must first determine what ratio is required. Most 2-cycle engines require either a 32:1 or 40:1 ratio. That's 32 or 40 gallons of gas for each gallon of oil.
The Gas/Oil ratio is 50:1
If your lawnmower is a 2 stroke mixing oil in the gas is what it needs to run right. If your lawnmower is a 4 stroke mixing oil in the gas fouls the plug and makes it not run.