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Antifreeze Types
Dennis;
It is no different to the green material. Antifreeze has a limited life as the alcohols will dissolve metals and other contaminates out of the system. The antioxidants, rust inhibitors, lubricants etc break down over time and need to be replaced. The flourescent dyes are added to trace for small leaks.
I have bought some of the cheaper generic antifreeze with the pink dye.
Dennis if you have not replaced the antifreeze it is about time anyway. I am looking at the Dodge the same way.
You need the mixed metals antifreeze and ideally distilled H2O.
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Antifreeze Types
The amount of minerals disolved in the water is insignificant in this application. It is important not to drink distill water, as it will leach minerals from your system. But in this application the you are adding the corrosion inhibitors etc. It is important that you remove the other calcates as they block you tubes over time.
If you think pure water is corrosive then you had better not add the ethylene glycol.
Prestone sell their better grade in the pink guise. The only difference I could see was a surfactant and a corrosion inhibitor listed. It is recommended for the aluminum rads.
I have been using the propylene glycol, Peak sell it at K-mark for only slightly more than standard prestone. It is also recommended for the rads. The propylene is less corrosive then the ethylene also.
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I agree de-ionized or soften water is fine. I have neither from the tap here so resort to buying distilled.
The corrosion additives act some what like a buffer but they are added at lower concentration than are on the label so?
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As toyota is not shipping antifreeze from Japan nor do the make the stuff I am sure the Preston long life will suffice.
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Well I stand corrected and afirmed. There seems to be a reason not to use the american extended life in the car. I I can not see any reason to not use the silicates. The statement that is is essentually sand is not exactly correct the phosphates are not exactly fertilizers are they. I have run high performance gear pumps for years with high concentrations of silicates yes there is wear but you could have run soapy water and had the same wear. Dilute solutions in a non clearance pump sorry I have better things to worry about.
It does recommend using distilled water. The water from your humidifier is like distilled if the coil does not have alot of organics growing on it.
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