guys since i am experiencing extensive knocking issue on my 2SZ FE vitz. and the issue has been identified by pakwheels experts related with the use of ZIC A+ (5W-20) a less viscous oil. i am going to change the engine oil.
short listed oils are mentioned below
Caltex Havoline 5W-40
Micking Max Super 10W-40
Shell Helix Ultra 5W-40
Micking Max premium 5W-50
all of these will cost between 2500-3500 Rs. I have compared the viscosity of these oils and all of them have considerably higher numbers at 40 and 100 Degrees.
I have had a personal good experience with Micking so inclined towards using it. probably will go for 10W-40 Max Super Fully synthetic.
Please give your suggestions for the guidance.