Plenty of others like bmw and volkswagen do the same thing.
View Why Bmw Blue Coolant
Images. It is a hybrid organic coolant, meaning it contains organic acid like dex cool, but also some extra additives which make it more compatible with older engines. One reason why it may be a good idea to flush cooling system after using these uv dyes is because it may confuse next mechanic working on the car.
I suspect that the blue bmw coolant is good for corrosion protection for far longer than 18,000 miles. This is an antifreeze ratio of 50% antifreeze and 50% water. Also, bmw warns not to subject the pump to straight coolant, it must be mixed with water outside the engine.
What coolant should i use.
This is an antifreeze ratio of 50% antifreeze and 50% water. Not every manufacturer does this that's why you need to read what the bottle says and and not rely specific color you're pouring. With these types of coolants, you'd normally. This is an antifreeze ratio of 50% antifreeze and 50% water.