What temperature should antifreeze generally be added at?

[StNora]

The freezing point of antifreeze can reach minus 40 to 60 degrees Celsius. Below is relevant information: 1. Main functions: To protect the normal and optimal operation of the engine, antifreeze circulates in the engine radiator and water channels, providing effects such as anti-freeze, anti-boil, anti-rust, and anti-corrosion. Most antifreeze has very bright colors, such as red, green, or blue, making it easy to observe leaks or distinguish it from other engine fluids to avoid confusion. 2. Precautions: Try to use the same brand of antifreeze. Different brands of antifreeze use different metal corrosion inhibitors, so they should not be mixed. Antifreeze has a validity period of more than two years (some products may last longer), and the product should be confirmed within the validity period; replace the old fluid, clean the cooling system, and then replace it with new fluid.