dansuewong
Member
Anyone know is it better to use BMW coolant water to top up or just tap water ?
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Coolant water
- Thread starter dansuewong
- Start date
Codewerx
Well-Known Member
Coolant is ethylene glycol with additives. And has standards associated - G11, G40 etc.
A coolant mix of 50% water and 50% EG has a boiling point of 107c which is close to the engine's operating temp.
Personally I prefer distilled water over tap water. And water has a higher specific heat capacity than EG.
A coolant mix of 50% water and 50% EG has a boiling point of 107c which is close to the engine's operating temp.
Personally I prefer distilled water over tap water. And water has a higher specific heat capacity than EG.
I had my first coolant Low message n I had to stop by petrol station to TOP up coolant. The Mechanic used a pressure test to test for leaks but couldn't find any. Then how did coolant level evaporate till warning level? I've owned different cars over 40 yrs n this is my first time with coolant warning. My bmw3 series is only 2 yrs old! Is this a common problem for BMW? Thanks
Viper Warrior
Well-Known Member
I would like to say maybe its one off (bad luck). I have owned a few Bimmers thru the years and never encounter coolant warning that early stage (at least never within the first 3 years).
I do encounter my F10 Thermostat spoil within one and half year old .... I called that bad luck too
dansuewong
Member
Where to buy Distilled water ? I can't find it at any shell store
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Viper Warrior
Well-Known Member
This are common drinking water sold at NTUC, Cold Storage, etc ..... Written "Distilled water" on the label.
dansuewong
Member
I checked but all of these are mineral water
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