Don't get teflon coating on it by the dealer

I have purchased Honda WRV Exclusive Edition 2 months before I am impressed from this car in looks exterior and interior but I am disappointed in terms of mileage it's claimed me a mileage of 17.5kmpl but in my locality where some amount of traffic is there it gives me around 12-14kmpl it should have given 15-16kmpl but in highway it gives 19kmpl in AC.....So we should not see mileage...but overall the car is good.... fantastic.....powerful engine...and specially I liked it's sunroof... overall car is good...