Your petrol-powered engine requires a mixture of petrol and engine oil. The quality of the petrol and oil is extremely important to the running and life of the engine.
Unsuitable fuels or mix ratios that do not comply with the specification can seriously damage the engine (piston seizing, excessive wear.)
We recommend the following mix ratios:
for STIHL 1 : 50 two-stroke engine oil:
1 : 50 => 1 part oil + 50 parts petrol
To mix the fuel, first pour the engine oil and then the petrol into a suitable can approved for use with fuel. Before pouring this mix into the fuel tank, first mix it thoroughly by shaking the can. Take care when opening the can as pressure may have built up inside.