Jäähdytinneste

Jäähdytinneste, also known as antifreeze or coolant, is a crucial fluid for maintaining the optimal operating temperature of internal combustion engines. Its primary function is to prevent the engine from overheating in hot conditions and freezing in cold temperatures. This is achieved through a carefully formulated mixture, typically of ethylene glycol or propylene glycol and water. The glycols significantly lower the freezing point and raise the boiling point of the water, providing a wider temperature range for effective operation.

Beyond temperature regulation, jäähdytinneste also contains additives that protect the engine's cooling system components. These additives typically include corrosion inhibitors to prevent rust and scale buildup in the radiator, water pump, and engine block, as well as lubricants to protect the water pump seal. Some formulations may also include defoamers and pH adjusters to further enhance system longevity and efficiency.

Regular inspection and replacement of jäähdytinneste are essential for proper engine maintenance. Over time, the protective additives degrade, and the fluid can become contaminated, reducing its effectiveness. Manufacturer recommendations for coolant type and change intervals should always be followed to ensure the cooling system functions correctly and to prevent costly engine damage. Different types of coolants exist, often identified by color, and mixing incompatible types can lead to system damage.