LLC (Long Life Coolant)
LLC (Coolant) is an abbreviation of Long Life Coolant, which is a type of antifreeze that can be used throughout the year, and mainly refers to the liquid that cools automobile engines. It is used to suppress overheating in summer and to prevent the engine from freezing in winter. It has been standardized as a JIS standard, and LLC means that it can be used throughout the year. Some are sold in concentrated form and can be diluted with tap water. Some products need to be replaced at regular intervals, but there are also LLCs with a longer replacement period than the normal one called Super LLC.