I got maximum 15.5 kmpl on motorway at 100-110kmph till isb. In city i always got 11-11.5 kmpl with AC in Lahore. My area is very congested in terms of traffic.. Jinnah hospital..etc.
I always calculate mileage using fuelio app..manual method. Meter always display around 10% better mileage so i don't trust that in any car.
No tunning till i kept car for 32000kms. I always had throttle body cleaned once at 25000kms. That's all. There is no such thing as tuning in these cars tbhm there is no tappet adjustment required either
Yokohama advan db v551
Honda 5w-30 oil
No hobc ..standard fuel only from pumps having good reputation. No random fillups