Understand the difference between coolants, and how to look for problems. Coolant (sometimes referred to as antifreeze or radiator fluid) is used to regulate your engine temperature and prevent it ...

Question: I drive a Toyota and do all of its maintenance. I have been using the regular “green” coolant that is frequently on sale, and I change it every couple of years. Recently, I was told by a ...

As engines get very hot, coolant helps distribute heat to help prevent overheating and engine damage. It also adds antifreeze protection and acts as a lubricant for some of the engine’s components. If ...

Hello Paul, my Mercedes C 200 engine coolant has developed a milky brown colour. My service bay mechanic suggests that it might be oil mixing with coolant. What is the cause and how can we fix it?