I see my coolant less than 50%.

Can i just add plain water to top up.

I need to travel back to KL in midnight. About 300,km

This post has been edited by Irresistible: Dec 25 2022, 09:37 PM

Can... No issue but make sure you flush out and replace the coolant after every 3 to 4 years.

Recommended to add distilled water as there are less mineral to react inside your radiator

No problem. There seems to be a leak in the radiator. Keep a big bottle of water and some rags in the boot - in case the radiator runs dry again.

Better get it looked at when you get back.

Replace 100% pure coolant? After 3-4 years.


Thanks

This post has been edited by Irresistible: Dec 25 2022, 09:37 PM

what car and model?

Not 100% coolant... It should be pre mixed or 50% distilled water + 50% concentrated coolant.

Just use coolant la.

Better safe than sorry.

Those sell in shop is already premix one, right?

Already add water. Just temporary SOLUTION. Bcoz need to rush back KL.

I add battery water

What car are you driving btw?

Perodua myvi.

50% in reservoir is fine. Top up during your next service.

Then you need to use Toyota coolant .

They have it 100% concentrated and also 50/50 premixed. So it is up to you which one to buy.

some coolant are "ready to use" and some are recommended to add water.
the cooling system literally just needs water, but the coolant have additives inside
that prevents corrosion and also rust
as we all know water + air = rust

so if buying coolant in the future, please check if it needs to add water