hello friends , i am from Italy. last month i bought a vitara 2015 model petrol varient FWD123000 KM . I PERFECTLY HAPPY AND SATISFIED. WHEN EVER I TRY TO DO SOME CHANGE IN ODOMETER AND IT AUTOMATICALY RESET MILAGE AND SHOW DIFFERENT DATA. For examble when i get the car its shows 8.5/100 , then after 7.2/100 and now it show 9/100 . my consern is should i consider it as milage drop. how can get accurate data of milage.