Hello Experts, I get 12-13 kmpl mileage on my petrol Polo in city. The ARAI certified mileage is 17.2. Recently i went for a Chennai-Ooty trip and got a mileage of 19+ (1250km/65ltr). My car is almost 6 months old. My question is how did I get more than ARAI certified mileage? Has anyone else experienced this too?