I am having trouble with my new Maruti Ritz Vdi. Currently it is at 15000 kms and it has never returned me mileage above 15.5 even on the highway... I have complained regarding this to all MASS but they simply try to convince me that the mileage is correct and dont do a proper checking.
The only thing they did was clean the air filter (which i have done myself many times) and loosen up the hand brake!! ?? they told me that a tight hand brake would slow down the vehicle and cause low mileage.
How i checked my mileage:
1. I used full tank to full tank method.
2. I travelled from Bangalore to ooty via the longer salem route during early morning. No traffic, perfect highway for most part. Drove at around a constant speed of 120-130 for most part upto avinashi, and then in and around ooty. Total Mileage returned 15.5 kmpl
3. Travelled from Ooty to Bangalore via mysore, maintained constant speed of 80kmpl and some Bangalore Domestic Driving. Mileage returned 15.5 kmpl
4. During my day to day traffic stop and go within bangalore city, mileage returned is around 12 kmpl.
Any idea why this is caused, anyone out there experienced the same, and please let me know a good service station who actually are not afraid of checking my car using some diagnostics.