And these metals form corrosion films on their surface at the lowest moisture content in the surrounding space. Motor internals modern cars mobiles made without brass and copper, only aluminum and steel. When using G12 type antifreeze, a completely different engine protection mechanism is implemented than with G11. Once upon a time, the same Volkswagen company released VW coolant G 12 antifreeze, and then developed the corresponding VW TL 774-D specification. "Traditional" antifreezes, which are now labeled as G11, contain these substances.Īntifreeze G12 refers to carboxylate. For example, the Volkswagen G11 does not contain borates, amines, phosphates, and contains very small amounts of silicates. Other manufacturers also use this marking, but often do not meet the requirements of the specification. Now the company's products labeled G11 are the so-called hybrid antifreezes, produced according to the proprietary specification VW TL 774-C. The prototype of all coolants marked G11 is the VW coolant G 11, developed by the Volkswagen concern. Type G11 coolants wear out quickly and need to be replaced every 3 or 2 years. These metals without a protective film are quickly destroyed under the aggressive action of the glycol base. Additives of this type must be used if antifreeze comes into contact with non-ferrous metal surfaces. They form a protective film on the inner surface of engine parts. Inorganic (glycol) type G11 antifreezes contain special corrosion inhibitors. What is the difference between G11 and G12 antifreeze Manufacturers add substances that suppress corrosion processes (inhibitors), fluorescent additives, anti-foam and anti-cavitation substances, as well as dyes to the developed G11 grades. In addition to the base, the composition includes water, an original package of additives. These substances have a low coefficient of thermal expansion, low freezing point. The basis of any cooler is ethylene glycol or propylene glycol. Therefore, when choosing a new antifreeze, do not pay attention to the color, but take an interest in the product labeling. Often they paint liquids in a branded or some other color. That is, nothing obliges manufacturers to adhere to it. This color classification is used frequently but is not a standard. It was proposed to produce inorganic coolants (G11) in blue and green colors, and organic coolants (G12) in pink and red. The generally accepted classification of antifreezes was proposed at one time by Volkswagen. What does the color difference between G11 and G12 mean Consider adding a bottle of Redline Water Wetter for decreased temps.How to choose a coolant for a car engine? How to switch to a different type of antifreeze over time? What is the difference between G11 and G12 antifreeze and why are they different colors? Can different types of coolants be mixed?ĭo you want to understand the issue of using antifreeze? We offer answers to the most common questions on the topic. Recommended mix is 1/1 with water.(Preferably distilled water, as tap water contains deposit forming minerals. Check your manual, or on top of the coolant expansion tank as your specification should be stamped there. Do not mix either coolant with green, blue, yellow or anything other than G12 and G12 plus plus as coolant system damage can occur. Try to use what was specified or what matches the color in the tank, however G12 plus plus and G12 are miscible. G12 plus has been discontinued and replaced by the latest G12 plus plus. Some coolant fun facts: G12 (pink) is used in most Audi/VW from late 1996 to 2009 G12 plus plus (pinkish-violet) is used in most Audi/VW 2009 and after. It is also compatible in other applications where a pink G12 coolant is specified. Pentosin G12 coolant is the OEM supplier to VW/Audi, and is designed specifically for your VW or Audi.
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