My Vitz 2006 is giving me 10km per ltr, i know it is not quite upto the standard although i have done the following
- Cleant throttle body
- Changed engine oil
- Changed gear oil
- changed air filter
- cleant some sensors
despite of all this the average has not increased. What am i suppose to do ?
also i have a some vibration problem in my car when its at idle position or on low RPM.
PS : I drive the car very gently