The OTR conventional antifreeze / coolant - green is engineered to protect the engine from corrosion and rust. It plays a critical role in preventing winter freezing and summer overheating, offering consistent protection in both extreme hot and cold conditions. This antifreeze also serves as a lubricant for moving parts, including the water pump. Additionally, it helps maintain optimum engine performance across various climates, which can be crucial for the vehicle's functionality and efficiency.