Hi GreenTDI. Is it a Greenline version you are using? I live in Switzerland and own a Octavia 3 Greenline Combi. Because of winter and shorts trips to ski resorts (I have only bought the car in November), my mpg has been only 4.9l/100km (48mpg us). But with hotter days, longer trips and now summer tyres I am hoping to get much better mpg (obd value on current tank is 4.0/100km or 59mpg). I would be happy to discuss how to get the best of our cars