Overheating, strange smells, and gurgling noises can signal your coolant is failing. Find out when to flush it, and protect ...

It is common sense that the oil of any engine should never mix with the coolant or water. This is so because whereas oil is meant to lubricate all moving parts in the engine, the coolant is supposed ...

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?

Dear Mike: We have a 2004 Dodge Grand Caravan — bought new — that has 20,646 miles on it. I noticed that the radiator level was low two weeks ago so I added a 50/50 mix of water and Prestone — we live ...

Q I have a 2002 Olds Alero with the V6 engine. Recently I noticed that coolant is leaking. I have been told it is a slow leak from the intake gasket. My mechanic recommended that I get the leak fixed ...

As with the other fluids in your car, engine coolant plays a big role in how your car is running and should be monitored consistently. The frequency of checks will depend on the type of vehicle as ...

Dear Car Fix: Can you tell me if I can use distilled water in my radiator? I want to use the right fluid. -- B.D., Depew Dear B.D.: Whether you've heard it called coolant or antifreeze -- they both ...

Proper cooling is critical to any engine. Without some way to remove the heat created during the combustion process, the engine will quickly become a lump of scrap metal. But today's coolants provide ...

Q: I have a 1996 Ford Taurus, and yesterday I shut my door and all the interior lights stayed on as well as the "door ajar" light. I got out and securely closed all doors and can only assume that one ...

Elizabeth Nelson, coolant program manager at Polaris Laboratories, a fluid-analysis company in Indianapolis, Ind., tells a story that would strike fear into the heart of any fleet manager. A class-8 ...