- Oct 21, 2018
Your car is consider quite old and you can shell helix ultra to increase car engine performance. Not sure about petronas but castrol also good but helix consider quite good compared to these 3 brands.My car already 10 years old this year. I do some research through online and got interested to try Shell Helix or Petronas Syntium or Castrol Magnatec? Which is better for honda civic?