Shelf life of G-12

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Tacoma, WA
Originally Posted By: raaizin
Anyone know shelf life of VW G-12 antifreeze or can provide limk from mfg?
The rule of thumb for all coolants is a shelf life of at least three years when stored in the original closed air-tight containers at a temperature of maximum 30°C (86°F). For example: "Glysantin G 05 has a shelf life of at least three years when stored in originally closed, air-tight containers at temperatures of maximum 30 °C. Do not use galvanized containers for storage because they may corrode." The primary limiting factor in the shelf life of a coolant is silicate instability, since silicate will eventually polymerize to silicate gel. The VW G-12, which BASF (who developed it), sells as Glysantin Dynamic Protect/G 40: http://www.glysantin.de/15-0-Produktuebersicht.html?pid=g40 Since this is silicate free, like Dexcool, an unopened container in normal temperatures should last for years.
 
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