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?

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 ...

Assuming you're looking at the coolant catch-bottle and not the windscreen-washer fluid bottle, this is probably a bad thing. Any time the car's engine coolant can mix with its oil or vice-versa, ...

Though necessary for your vehicle, engine fluids can become dangerous, especially when they get into and contaminate another fluid. When one kind of fluid mixes with another, it reduces the ...

In a lot of ways, modern car owners have it easy. Sure, you might burst into a fit of rage trying to disable that lane departure warning, but inconvenient trips to the mechanic for maintenance are far ...

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 ...