Dear Brother! I am having a very minor issue with my santro Club GV 2007 model, my radiator does not reduce water but my radiator water bottle reduces water everyday around 150 ml while my drive is only 50 Kilometers daily which can be considered as long route only 5-7 kilometers in traffic (local drive) my radiator fan is auto, my car never heated up, while my previous santro club GV 2005 model never reduced water either from bottle or from radiator even on very long drives. What can be the issue. Radiator is not leaked I have checked.