What happens to the coolant when it's "too late"? Can explain?

there is 1 simple tool that you can use to measure coolant "performance"

if out of specs then can consider change



but malaysia dont care that much because we no winter

https://www.team-bhp.com/news/types-coolant...des-and-colours

If your coolant is made with OAT, it doesn't turn acidic.

And the best way of knowing when to change the coolant, is indeed, the color change.

U know based on my picture only?

That toyota red coolant not suitable with aluminium radiator.

Spritzer Distilled water + toyota coolant...

Or full premix-ed coolant like TCL.

Do descaling too... before change new coolant.

Drive red logo H but change radiator coolant diy
Lol
Mempersiasuikan bangsa H

I do at my mechanic. The coolant he just drain out only...he no kutip also. Yeah i know its toxic..
The picture is i burp the coolant for another 20mins because he just do one fan cycle. Honda said need 2 fan cycles. Go in extra around almost 1L also..

Different car manufacturer got different material for their cooling system & water hose.
My mechanic encountered before certain cars put in different coolant type/color, it can be use but after sometime the water hose expand (bengkak) and water pump seal area leaking. Some coolant might not compatible to certain seals or hose material thus can cause water leakage. No rust, but water hose & water pump all gg..  After that experience, my mechanic usually recommend to pick up original coolant or at least similar color for coolant.

Different car has different way especially there is a breathing screw u need to open while filling a empty radiator system.

Ic.

What will happen If use concentrated one 100% without mixing with water, those come is 500ml or so bottle.

Need to know the way to do , even got breath screw if not doing it carefully the system will masuk anging later wasted the coolant again , when start the car it will not giving any sign , after 5-10min run then u will see water temp rising and down , up and dowm very unstable

No lar that is old knowledge. Nowadays some battery water is distilled water + chemical.
They no update their knowledge not my fault le..

Old knowledge - battery water is 100% distilled water
New knowledge - some battery water is distilled water + chemical.