I have Honda City, 2008 Model 45,000km, the problem i am facing is when i pump the accelerator a voice comes from engine, like keer keer keeer...tats very annoying, some one told me to add Hi-Octane along with normal petrol, and yea my car in on petrol no CNG.
Any waz Hi-Octane didnt worked for me. So i need some help in this regard.