good engine coolant

[Ry_Tower]

Pwedeng paghaluin ang kulay blue at green pwera lang ang pula. Pinakamagandang iwasan ang kulay pula kung meron dyan.Alin man sa dalawa,blue at green, ay safe sa mga aluminum at cooper materials.If your in doubt,mas maigeng bumili sa casa para walang kaba.

Kindly expound on this? I have been using Caltex Poison and no problem so far. Also, it says in their label na its ok for all types of radiator. I'll check pala the package later tonight.