See also:

Fuel specifications
Never use fuels labeled at the fuel pump as metal-containing. Do not use leaded gasoline or gasoline with metal-containing additives such as manganese or iron; doing so can cause permanent damag ...

Switching on/off manually
Switching on/off manually Press the button. ▷ On: the LED lights up.<> ▷ Off: the LED goes out. ...

Saving the spoken instructions on the programmable memory buttons
The function for switching the spoken instructions on/off can be stored on a programmable memory button, for quick access. ...