The antifreeze – or coolant – in the engine of your petrol-powered vehicle is somewhat like the air humans breathe. It’s taken for granted until there isn’t any, then bad things happen. Engines seize, ...

Remember when all coolant was green? Now it also comes in orange, yellow (gold and amber), red, pink, blue and, if you mix the wrong things together, brown. Here’s a primer on the varieties of ...

QUESTION: I have a '97 Chevy pickup with a 5.7-liter engine and less than 97,000 miles. The garage replaced the red coolant with the green antifreeze. The manual says to use red. The garage said no ...

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 ...

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 ...