Im now using petron blaze and finally nawala na engine knock ng cefiro. Thanks to the guys na nag advise. I am now going to tune my car up and buy new sparkplugs. Any idea on which plugs to use and where to buy it?
Maybe a set of BOSCH platinum tip sparkplugs so you don't have to replace them for a longer time than with ordinary sparkplugs. I think you can buy these at ACE hardware or True Value stores.