Can you directly add coolant if it's low?

[LeMariana]

If the coolant level is too low, you can directly add the same brand and specification. Coolants of different brands cannot be mixed. Here are the precautions for adding coolant: 1. Try to use the same brand of coolant. Different brands of coolant use different metal corrosion inhibitors, so they cannot be mixed. 2. Most coolants have a validity period of two years (some products may last longer). When adding, make sure the product is within its validity period. When replacing, drain the old coolant, clean the cooling system thoroughly, and then add the new coolant. 3. Avoid diluting with water. Traditional inorganic coolants should not be diluted with water, as this can cause precipitation and severely affect the normal function of the coolant.