Hi. I have a Honda City Manual Transmission 2017. It has now exceeded the 1 lac KM running and I want to change its gear oil. Which oil should be the best for it and how much litres do I need? Where to buy genuine oil in Islamabad (F sector). I can go to Honda but they won't give me the gear oil without asking their mechanics for replacement and they cost a lot. So I want to buy myself and get it changed from my own mechanic. Any leads please. Thanks