Quote Originally Posted by biglang_liko View Post
Here'e the effect of using petron super unleaded E10 on my 2010 Genesis Coupe 2.0turbo.... the mechanic at Hyundai Commonwealth said the "pak-pak-pak" sound was "fuel knock". That seems logical since that never happend when i was still using Blaze. I'm gonna fill up with blaze as soon as the tank's empty to see if the sound goes away.

YouTube- Genesis turbo clicking sound

YouTube- Genesis Turbo knocking
Maybe because the blaze has a higher octane rating ( +98 ) than the super unleaded ( +93 ) ?