Coolant is a 50/50 combination of water and antifreeze. Like motor oil, coolant flows through internal combustion engines to absorb and remove heat, prevent corrosion, and help the motor function at ...

I used to recommend changing coolant every 30,000 miles or three years. But as coolants and engine technology continue to improve, I’ve softened my position on coolant changes. Assuming a long-life ...

Q You have recommended changing coolant every 30,000 miles or three years. How does universal coolant compare to green, orange, etc., types of coolant?A As coolants and engine technology continue to ...

There is no one single correct color for coolant, because different cars require different specific types of coolant. Some of the more common colors include pink, orange, blue, and green, and while ...

Red coolant is designed for modern cars with aluminium engines, lasts up to five years, and should never be mixed with green coolant. Green coolant is for older vehicles, usually lasts two years, and ...