Well, antifreeze and engine coolant are similar, but not the same. Antifreeze is a concentrated, glycol-based liquid that must be diluted with water before use – at which point it is referred to as coolant. Alternatively, you can purchase pre-mixed engine coolant, a ready-to-use solution of antifreeze and water. The freon will also be between a gaseous and a liquid state, and the coolant will remain as a liquid throughout time. The coolant will not also affect the temperature of your A/C. Freon also does not cool your engine, and the coolant contains antifreeze, not the same as Freon. Both of these fluids must also be replaced at different intervals Antifreeze and the coolants are not the same. As the name suggests, antifreeze helps prevent your vehicle’s water-based cooling system from freezing. Coolant (or engine coolant), on the other hand, is a liquid that helps reduce engine temperature. These fluids are used for different purposes, but coolants contain antifreeze. One says coolant and the other says antifreeze. So, is there any difference? Well, in reality, there is none. Both of these solutions are pretty much the same thing. So, you should not get alerted and confused if you notice this when purchasing coolant for your car. A jug of antifreeze will do the trick just fine. Is coolant and antifreeze the same thing? Engine coolant, also known as antifreeze, is mixed with water to keep the radiator from freezing in extreme cold and overheating in extreme heat. What color should antifreeze be? Most people think of antifreeze or coolant as green. For years many antifreeze/coolants were green in color but now many Red and Pink are two different technologies, but are fully compatible. Red is good for 2-3 years/24k-30k miles, and Pink is good for 5y/50k with only the factory fill supposedly good for 10y/100k (when not poisoned with other coolants, or topped off with tap/well waters). When Red&Pink are mixed, use the 'lesser' interval. Obviously it's better than letting the radiator run dry, and technically there are other lubricating additives you could substitute. But really you pretty much always need at least a little anti-freeze in a modern engine or it will be unhappy. If you can't get it, your best substitute is generally some kind of alcohol. Antifreeze is a concentrated product, normally based on glycol and contains inhibitors, according to the AA. Some types have to be diluted with water to make them a suitable concentration before use, which is where the name coolant comes from. Coolant is a 50-50 mix of antifreeze (ethylene glycol) and water. Not much, actually. Antifreeze, usually ethylene glycol, does not freeze easily. It also does not boil easily. When it is added to water, it becomes coolant. You can buy it separately and add it to the water in your radiator—usually aiming for a 50 percent antifreeze to 50 percent water ratio—or you can buy it premixed, generally in that Radiator fluid is vital for preventing your car engine from overheating.Antifreeze is a type of fluid that helps lower water's freezing point. At the same time, car coolant also raises the boiling point.Both are important in hot and cold weather.Check your owner's manual to see what type of radiator you need. TvlWj.