What is the difference between FAW-Volkswagen's G12 and G13 antifreeze?
2 Answers
G12 and G13 differ in that the G13 antifreeze contains additional leak-preventing chemical agents compared to the G12 antifreeze. If there is a minor leak in the cooling system, it may not require repair, as the antifreeze itself can seal the leak point. Below are some details about G12 and G13: 1. Similarities: Both G12 and G13 antifreeze offer the same functions, including freeze protection, corrosion inhibition, and boil-over prevention. There is also no significant difference in color. 2. Differences: The G13 antifreeze contains additional leak-preventing chemical agents in its formulation compared to the G12 antifreeze. If there is a minor leak in the cooling system, it may not require repair, as the antifreeze itself can seal the leak point. Other ingredients are essentially the same. Therefore, G13 antifreeze can be used as a replacement for G12 antifreeze, while G12 antifreeze can serve as a backup.
I've been driving a Volkswagen for several years and have used both G12 and G13 coolant. The main differences lie in their formulations and compatibility. G12 is silicate-based and tends to form deposits in engine pipes, affecting heat dissipation. G13, on the other hand, is OAT (Organic Acid Technology) based, providing more thorough protection for the water channels and stronger corrosion resistance. In terms of color, G12 is pink, while G13 is upgraded to purple or blue bottles, making them less likely to be confused. In practical use, G13 is more environmentally friendly and has a longer service life, lasting up to 5 years before needing replacement, unlike G12, which may require replacement every 2-3 years. Volkswagen recommends using G13 for new cars, and if switching for older cars, the radiator must be thoroughly cleaned to avoid residual chemical reactions. Never mix the two, as it can create gel-like substances that clog the engine, potentially leading to costly repairs. After upgrading to G13, I noticed a slight reduction in fuel consumption and smoother driving performance.
