Maruti Suzuki India — Swift dzire mileage problem after service

Address:

Erode, Tamil Nadu

Dear sir
My swift dezire tn 33 bd 6928 car was sent to yr ambal autos, erode just for oil service on 16.04.2017. I didnt make any complaints about car or milage. After paid nearly 8000, taken back my vehicle on that day itself.
Till that day average milage is 22 to 23 per litre before service. But after the service average milage is drastically reduced to 13.4.
On 18& 19 th, when i went to chennai from erode nearly i spent extra rs 2000 for fuel.
Till today my car ran 34000 kms onl;y.
Again on 20 th car was sent again to ambal, but no fruitful result. Even they didnt accept the problem.
Kindly do needful about this milage problem... Dr sekar, erode