useless pag taasan ang concentration ng coolant above 50%...

more coolant=less heat transfer=better anti freeze
less coolant=more heat transfer=less anti freeze

ethylene glycol ang main chemical ng coolant/antifreeze
it can function as both anti-freeze and anti boil-over..
it drops the freezing point of water when mixed and elevates boiling point of water when mixed.
water is the best substance for heat transfer not coolant(ethylene glycol)

you are using it here sa tropics at sa kotse mo dahil you want the properties of ethylene glycol of elevating the boiling point of water inside your radiator.
at 100 degress your water only radiator will boil. if meh ethylene glycol, you will raise the boiling point to above 100 degrees.

the more you add glycol the better it will perform as freeze depressant( hindi mag solidify tubig mo sa radiator) and the lesser it will carry heat from your engine.

kaya you just need enough ethylene glycol to raise your boiling point to around 110-120 degrees celcius...

gets?