Technical Twin Air with CNG question

[TJ95]

I'm driving around with a 2013 Twin Air with CNG, but everytime I turn the car on, I have to press the button for it to switch to CNG. Is that by design or not?

I'm asking because I drove an Opel Corsa with LPG, and that one remembered if LPG was on when the car was shut off and then tries to switch to LPG asap when I turn the car on.

I guess it's funny because for the Opel you had to turn the city mode (steering wheel) on every time you start the car but not for LPG, and for the Panda it's the other way around, have to turn on CNG but not city mode.

 

[portland_bill]

It is normal for cars that also run gas, to start using petrol, as starting on gas can be difficult, and can lead to excess gas, and a big bang. Defaulting to gas off seems normal. The Vauhall just had a cleverer control unit, and would switch automatically once the engine was running normally after a cold start.