Tq for the info. Really dont know how to differentiate to refuel which one better for my car. I googled Shell and then found that Shell Helix Ultra is a modern synthetic made from natural gas huhu
As seen from all the point I think I will go for Petronas since it is easily found within my house area, oil performance also good and I also always forgot to refill hahaha
Hmmm nowadays every brand provide environment friendly la.even the fuel saving also not much la, but petronas give more power, more power = lighter pedal .