lpg

I have the 1.4 active and i am based in germany, been thiinking about converting to LPG, does anyone know if its worth it and ho much it will roughly cost

With the cost of diesel now, just looking at the options, anyone got theres running/fitted out. does vegetable oil straight in a astra cdti 1.7 h ? or do you need it a convertor of some sort ? LPG options ?