what water to use for car coolant

[123hotchef]

I have a RO unit at work rather than purchasing de iononised water I was just going to borrow some from the RO that supplies the steam ovens. Any reason why not?

Lee

 

[Mr Fro]

That's exactly what I do!

I've got a bike engine in bits at the mo and all looks well so I'd say it'd safe.

 

[123hotchef]

cool thanks whats the mix ratio 50% 50% water to old school blue

 

[123hotchef]

DILUTION RATIOS
-37ºC - Use Neat (0%:100%)
-28ºC - 1 Part Water to 2 Parts Antifreeze (33%:66%)
-23ºC - 1 Part Water to 1 Part Antifreeze (50%:50%)
-16ºC - 2 Parts Water to 1 Part Antifreeze (66%:33%)

 

[123hotchef]

that will do for me ill go some 70 water 30 antifreeze

 

[winchman]

You need to get some out of the pretreatment side (DI) of the system RO water can damage certain components.
Personally I now use red OAT antifreeze as it last 5 years

 

[123hotchef]

You need to get some out of the pretreatment side (DI) of the system RO water can damage certain components.
Personally I now use red OAT antifreeze as it last 5 years

I was told that by the water guy he said it can eat through copper not sure how true that is, pretreatment would just be tap water

 

[Ton-up]

Have you got softeners before the RO? If so, that will do fine.

 

[knighty]

erm... why not just use tap water ?

 

[bricol]

S'exactly what I've done for the last 30 yrs of driving - so far everything seems to be surviving. After all, as soon as you tip anything into the engine, it's not exactly pure anymore. As long as you add a suitable corrosion inhibitor and anti-freeze, I can't see the real world problem.

 

[123hotchef]

I could just use tap water I thought u was suppose to use ditilled or de ionised water,

no softers before the ro at work it is all 1 unit

 

[winchman]

Must have some sort of filter at least a carbon filter as the Chlorine in mains water would kill the RO membrane
Having no DI plant before an RO would seriously shorten the life of the membranes.
Well back on point, the RO water wants to get minerals etc back in it so it can be corrosive in lots of situations.
Drinking water on most ships is made using a DI plant and an RO plant then salts and minerals are added or it would make you feel unwell when you drink it as it would start to strip you of minerals etc.
Tap water shoulnt be an issue high hardness can cause issues over a long period but as mentioned above the Corrosion inhibitors in modern antifreeze should keep everything ok providing the strength is correct.

 

[reb78]

What about filtered rain water?

 

[Brad93]

Should be 5 micron pre filter, the activated carbon granules, then carbon block then your RO filters

 

[123hotchef]

the RO units are from European water care they incorprate the pre filters before all in the one unit 2 big filters first then the smaller RO ones 4 or 5 of those
I have a drinking water filter on my tap at home maybe that would be better than the RO water I brought home today

 

[winchman]

the RO units are from European water care they incorprate the pre filters before all in the one unit 2 big filters first then the smaller RO ones 4 or 5 of those
I have a drinking water filter on my tap at home maybe that would be better than the RO water I brought home today

The question is better for what? RO water is RO water manufactured at point of use for a specific reason, I feel tap is fine quality correct spec antifreeze at the correct strength is the thing to get right

Should be 5 micron pre filter, the activated carbon granules, then carbon block then your RO filters

We use similar filter, carbon filter, filter again ( to catch any carbon) then chill then RO then EDI.
I am am sure some one will be using WFI which is a much cleaner water than Post RO
The USP (United States Pharmacopeia) defines this as highly purified waters containing less than 10 CFU/100 ml of Aerobic bacteria. These waters should also have fewer than 500 ppb of total organic carbon, fewer than 0.25 EU/ml endotoxins, and a conductivity of less than 1.3uS/cm @ 25 C.
Just stick tap in it

 

[winchman]

the RO units are from European water care they incorprate the pre filters before all in the one unit 2 big filters first then the smaller RO ones 4 or 5 of those
I have a drinking water filter on my tap at home maybe that would be better than the RO water I brought home today

Just googled them they are just a tiny low volume basic RO plant, it may be RO water as its been through a membrane but I suspect whilst it removes lots of stuff its not like a real industrial RO which has to produce the water to a set standard usually a MHRA of FDA standard.
I feel your tap stuff will be fine and to be honest I feel its better suited as your filter at home will be a basic carbon which will remove most of the bits you will be concerned about

 

[123hotchef]

Just googled them they are just a tiny low volume basic RO plant, it may be RO water as its been through a membrane but I suspect whilst it removes lots of stuff its not like a real industrial RO which has to produce the water to a set standard usually a MHRA of FDA standard.
I feel your tap stuff will be fine and to be honest I feel its better suited as your filter at home will be a basic carbon which will remove most of the bits you will be concerned about

Yes the ro units at work are basically to stop the steam ovens building up with limescale and breaking down.

I also have a water softener at home but I dont think that water would be good for the trucks cooling system.

 

[Turbo]

I've changed coolant in dozens of cars over the years using ordinary tap water & it has never caused a problem. Just use a good quality coolant with it & stop worrying. If you really want to you can buy premixed coolant so no water to add at all.

 

[123hotchef]

I already have the blue glycol i wont worry any longer lol filtered drinking water it will be