selemat pagi Pak..
Awas, benzin deri Indonesia tidah bagus !
Seriously though, I drove in Indonesia for some time and I found the quality of the petrol to be doubtful. I was driving a rented Toyota and found most of the gasoline to cause the car to ' pink ' often, especially in high gears and with exhaust emissions on the high side. Try you car with a higher octane rating if you can and see if that makes a difference......
hati hati pak !