A radiologist is a physician or medical specialist trained in obtaining and interpreting medical images. Images may be obtained with x-rays, (CT scans or radiographs), nuclear medicine (involving radioactive substances, magnetism (MRI), or ultrasound.
Without radiator coolant, an auto engine would overheat extremely fast, leading to mechanical breakdown and engine failure. While oil may be the lifeblood of a carâs engine, coolant is like the water that helps to dispel heat. In fact, coolant mixes with water in a carâs radiator. It prevents the water from freezing and boiling given the extreme temperatures it is exposed to.
What is the freezing temperature of petrol? A common mixture in a car radiator is 50 percent ethylene glycol and 50 percent water. This mixture has a boiling point of 223 degrees Fahrenheit. A mixture of 70 percent ethylene glycol and 30 percent water has a boiling point of 235 degrees Fahrenheit. Coolant should be about 200 degrees Fahrenheit for engines to run optimally. A less-common type of antifreeze contains propylene glycol instead of ethylene glycol.