*goldencoil: coolant contains a chemical called Ethylene Glycol/Polyethylene Glycol. in which, the boiling point is almost triple than of water (water boils at 100 degrees Centigrade). it also protects your radiator for rust and corrosion..

brands, madaming maganda dyan. almost pare-pareho naman ingredients nyan (as i've stated above). personally, i use glycoshell (from shell).

the most important is to follow the 50% water-coolant mixture. and never mix different types of engine coolant. You can damage or further reduce your car radiator’s efficiency by mixing the different types. Before you change types, thoroughly drain and flush your cooling system.