Radiator fluid — also known as coolant or antifreeze— is usually a mixture of water and glycol. Water serves as the base, while glycol provides anti-freezing and anti-overheating properties. Radiator fluid can also include additives, such as corrosion inhibitors and lubricants, to help maintain...
You may also notice a sweet smell, which is a characteristic odor of ethylene glycol antifreeze.The most common places where coolant may be leaking are:A worn seal on the water pump shaft can leak coolant.Water pump -- A bad shaft seal will allow coolant to dribble out of the vent hole...
Unfortunately, it is difficult to tell if a system filled with long-life antifreeze has been topped off or intermixed with ordinary antifreeze. Dex-Cool in General Motors vehicles is dyed orange to distinguish it from ordinary coolant, but it takes a lot of green or yellow coolant to produce ...