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?

It certainly sounds like it could be a blown head gasket that is allowing the car’s coolant to mix with its engine oil. A brown, oily looking fluid in the radiator is a sign that this may have ...

Motor oil runs throughout your engine, lubricating and preventing damage to critical parts to ensure it operates smoothly. Other fluids have their own purposes, such as lubricating the transmission, ...

My oil and coolant mixed together, the dealership is recommending an engine flush among other things. Do I need one? A car repair centre says no. Your thoughts? – Claudette Your question is sparse on ...

The first conclusion many mechanics will arrive at is that the engine’s head gasket has blown, allowing the oil and coolant to mix. Have a look at the dipstick. If the engine oil is milky, then this ...

Replacing engine oil and coolant on your own is fairly easy besides saving you cash. All you need for the job are simple tools, the right product and some patience The first thing is to maintain a ...

Oil and coolant are like your blood and your sweat, respectively, and they have to work together to keep you alive, explains Dave Tingey, senior data analyst with Polaris Laboratories. "If your body ...

Want your car to last for the long run? Learn expert tips on oil changes, air filters, brake fluid and coolant to boost a car ...

If you've ever been topping off your car's coolant and accidentally poured the brightly colored liquid all over the engine, ...

Alright, I was trying to fill my washer fluid and out of sheer stupidity I put it in the wrong tube. Now I have washer fluid, antifreeze, and water in my radiator. I'm worried what this will do to my ...

Hi Paul, my BMW 320 E46 engine coolant fluid in the plastic bottle has developed a milky brown colour. My mechanic says it might be engine oil mixing with coolant due to serious damage. What could be ...