Replacing coolant

[Mini-itx]

I'm also using WW. Bought about 7litres of Watson's distilled water to go with the WW. Wouldn't dare to use tap water.

 

Noticed that the engine temperature could rise to running temperature faster compared to the normal coolant + anti-freeze/anti-boil.

 

Just get a bottle of REDLINE water wetter. Flush out the entire radiator + engine passage ways and pour in the whole bottle. Top up with clean tap water, thats all.

 

Maximum cooling and very little water loss. Much better than any glycol based coolant.

 

Reason :

 

1) Glycol is an anti-freeze, anti-coagulant, anti-rust, anti-mineral fluid (thats alot of antis )

2) Dye colour is to allow vehicle users to quickly identify coolant leaks, it has no other function.

3) Any other coolant is of course fine.

4) Since most car engines on the roads today are aluminium alloy casted, you don't need the anti-rust or anti-freeze properties.

 

Hope this helps to answer your thread post

 

Have a safe and enjoyable drive

 

I used the Motul coolant instead (I am at Autobacs and WW is way too expensive there). Purple colour one. Drain out my water, filled with distilled water and 1 bottle.

 

I seriously dont see the need for specialised coolants. Just distilled water and a bottle of additive is enough. Unless premix coolant is much cheaper.

 

Btw, I am still wondering if distilled water is really needed. Cause when I see some WS do flushing they just flush entire thing will high pressure pump. Where does the water comes from? Tap Water! After they flush till clear and drain all the water, they then top up with coolant.

 

There is NO way to remove all the water in the engine The water inlet/outlet are not at the lowest point and no matter how much you drain, there is still alot of water inside the engine and they are all tap water.

 

So if you pour distilled water inside, it will just mix with tap water and become tap water. Pour coolant? Also mix with tap water. So in the end, whats the point?

[Keen]

I'm using Nissan's Green longlife. Silicate free. Cheapest of the whole lot I can find.

 

May i know is nissan green longlife still readily available? anywhere in sin ming or veerasamy or kaki bukit area can get? is it still the most value money coolant?

[Genie47]

Dunno. Haven't changed my coolant yet.

[Keen]

wow, you still using nissan long life coolant since 08? anyway how long does it last? will go and scout for it...

[Yeobh]

Std coolant life is about 2 yrs, for long life type 3 yrs should be ok. best way to go about is to check the anti-freeze % with a tester

[Kungfu]

for me....have been using this mercs-benz coolant in my toyota for twice.......and also previous in my wira.....so all along using this coolant....very good.

[Solar]

on the redline wetter... can it be mixed with the water+coolant already in the radiator?

i changed radiator recently... the coolant is still new..

[Ladykillerz]

on the redline wetter... can it be mixed with the water+coolant already in the radiator?

i changed radiator recently... the coolant is still new..

 

just flush out everything and pour in the new coolant, without water.

[Nom107]

ntuc is sell 1ctn DISTILLED WATER (1.5Lx24) $5.5 mean I can use to flush few times b4 put in new coolant ?

[Eds]

http://eds-ignitionspecialist.blogspot.com...ko-coolant.html

[Hermit]

A good mech will usually help you to flush thoroughly if replacing the coolant, esp if it is of a diff type.

 

But imho, the ideal time to change would be when you are changing the water pump too.

 

[Yeobh]

Basically coolant chemicals will break down due to heat and the flow speed within the cooling system. Once it's chemically break down , it looses it functions to improve water boiling point, lub the moving parts and will not act as rust protector. The coolant will also becomes alkaline or too acidic which will cause metal erosion.

Under our very hot ,humid weather and city driving conditions,as a rule of thumb ,it is best to replace the coolant once in two years.

[Keen]

Basically coolant chemicals will break down due to heat and the flow speed within the cooling system. Once it's chemically break down , it looses it functions to improve water boiling point, lub the moving parts and will not act as rust protector. The coolant will also becomes alkaline or too acidic which will cause metal erosion.

Under our very hot ,humid weather and city driving conditions,as a rule of thumb ,it is best to replace the coolant once in two years.

 

even for long life coolant?

[Chpeck]

I have been using this for the last 10+ years, feeling silly using Antifreeze in such hot weather but still continue to do so.

 

[Yeobh]

This info may help to understand the need to use anti-freeze ( ethylene or propylene glycol ) even in our tropical weather.

 

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A 50/50 mixture the coolant will boil at 107 deg C (225deg F) and freeze at -37deg C (-35deg F)

 

A 70/30 mixture the coolant will boil at 135 deg C (276deg F) and freeze at -64deg C (-84deg F)

 

A solution with more than 70% antifreeze will give less protection.

 

Pure antifreeze will freeze at -21C (-6 F)

 

Note! Distilled or deionized water should be used for Propylene glycol solutions. City water is often treated with chlorine, which is corrosive, and should be avoided. One of the best method to determine if the coolant is properly mixed is to measure the strength or concentration of the antifreeze with a hydrometer. After checking then you can safely decide to add more antifreeze or distilled water

 

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[Yeobh]

Attached a simple economical ethylene glycol coolant tester

[Yeobh]

I reckon you can use as per their recommendations but it will be to yr benefit to check visually and with testers.

 

You will hardly see any mech doing through checks on coolant in this part of the world. In US many professional mech will check

 

a) coolant boiling and freezing temp ( to determine the % of anti freeze )

b) coolant PH value

c) Measuring minute volt dc passing through the coolant ( to prevent electrolysis actions on the aluminium parts )

 

 

Edited May 24, 2011 by Yeobh

[Kiadaw]

This info may help to understand the need to use anti-freeze ( ethylene or propylene glycol ) even in our tropical weather.

 

------------------------------------------------------------------

A 50/50 mixture the coolant will boil at 107 deg C (225deg F) and freeze at -37deg C (-35deg F)

 

A 70/30 mixture the coolant will boil at 135 deg C (276deg F) and freeze at -64deg C (-84deg F)

 

A solution with more than 70% antifreeze will give less protection.

 

Pure antifreeze will freeze at -21C (-6 F)

 

Note! Distilled or deionized water should be used for Propylene glycol solutions. City water is often treated with chlorine, which is corrosive, and should be avoided. One of the best method to determine if the coolant is properly mixed is to measure the strength or concentration of the antifreeze with a hydrometer. After checking then you can safely decide to add more antifreeze or distilled water

 

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So base on the data above, 70% antifreeze with 30 percent coolant (or is it water) is good? Since it not only have higher boling point, but also lower freeezing point. I thought all coolant have wider operating rate (lower freezing point, & higher boilng point, & have antifreeze build in).

 

Very confuse. I usually use the red toyota fuild, & only mix some distill water when the level drop a bit. So I should add some antifreeze as well?