So Now after driven 50,000 KM with the spell of 20-50, 50-90, 90-120, 120-145,145-170 on local city roads of Islamabad, Lahore and Peshawar and on Motorways. Out of 50,000 KM, 45,000 driven by using ZIC 10W-40 and 5,000 till date using ZIC 5W-30. I noticed that by using 5W-30 the car gives more economical millage i-e 17KM/L in city and 22 KM/L to 25 KM/L on Motorways. I checked on daily basis that if there is some oil reduction, I'm happy to see even after 5,000 KM there is no oil reduction and the color of oil change slightly. The level is same as when I changed OIL. After Swapping the I only change Spark Plugs, cleans throttle body 3 times and clean cat 1 time.