Hello, I have Japanese wagon r 2015. It is giving me 13km per liter but used to give 18km per liter to previous owner. I changed the oil 20-40w as the mechanic recommended this and also did tuning and changed spark plugs. But nothing helped.
What should I do? I have no idea, I'm really worried about the fuel consumption.
If anyone can guide me, I'll be really grateful, I'm from Lahore.