There are so many colors and kinds of coolant. Whats the difference?
Color may have some meaning, but for the most part, antifreeze is dyed to make it like other products or make it different. For example, green antifreeze can be fully formulated, universal, or automotive antifreeze. Cel-Cool Heavy Duty Extended Service uses yellow dye so that you will know if your antifreeze is 100% Cel-Cool or if other types of antifreezes have been mixed together by a visual check. It’s all in the Additives. The additives inside the coolant make the performance difference not the color. That’s why it’s so important to know the specifications of the coolant the engine manufacturer specifies, to find out what specifications your antifreeze needs to meet. Just because they say you can use it in a diesel doesn’t mean it is made to use in a diesel. There are specifications and performance tests that must be performed on the antifreeze per the original equipment manufacturer’s (OEM) requirements.
