It has a much lower freezing point than water. if the coolant freezes it expands cauing pressure damage or even leaks.
It also contains anti corrosion chemicals to prevent rust inside the engine.
I have a 91 Ford escort that has two caps. one is on the radiator itself and one next to it that says coolant only. how do I know where the antifreeze goes? does a mixture of coolant and water go in the radiator or does only water go in radiator and coolant in the other one? I have never seen an engine with this. could you help explain it?
radiator antifreeze coolant.
At the radiator or at the coolant resivoir.
To change coolant on a Toyota Corolla, place a bucket under the radiator. Open the radiator drain valve and remove the radiator cap. When all antifreeze drains out, close the drain valve. Then refill with fresh antifreeze and replace the radiator cap.
Pour water/antifreeze at ratio 60/40 into radiator
To put in more antifreeze in a 1995 Plymouth Voyager, located the reservoir near the radiator. Antifreeze is no longer added directly to the radiator. It is put into the plastic reservoir that is labeled radiator or coolant overflow.
Remove the radiator cap when the engine is cool and add the coolant into the radiator or you can add to the coolant overflow bottle. DON'T remove the radiator cap when the engine is hot!!!
Yes, you can add antifreeze / coolant to a car without flushing the radiator. It's best to use the same type that's already in your car / truck - conventional or long-life. Antifreeze / Coolant comes in 'Full Strength' which needs to be mixed with distilled water (usually 50/50 for mild weather regions, and more antifreeze 70/30 for really cold weather regions.) Also available is pre-mixed 50/50 antifreeze. PEAK Antifreeze & Coolant protects from -84 degrees to 276 degrees Fahrenheit when mixed 70/30. If it's been 2-3 years since a flush & fill for conventional antifreeze / radiator fluid, or 5 years for 'long life' antifreeze, it's likely time for a flush & fill.
The bottle on the firewall with the radiator cap on it is where you add coolant.
Antifreeze raises the boiling point of water in a car's radiator by reducing the vapor pressure of the coolant mixture. This helps prevent the engine from overheating by allowing the coolant to operate at higher temperatures before boiling.
I assume you are refering to the radiator overflow bottle. The required coolant is red 5 year antifreeze(not dexcool).
Np, because most of your coolant is contained in the engine block. So when you drain your coolant from your radiator, most of the coolant will *remain* in the block.