A 50 / 50 mix freezes at ( -35 degrees Fahrenheit / -37
degrees celsius )
My engine coolant is a 50 / 50 mix of antifreeze and distilled water so adding water will just dilute the mixture more and weaken the antifreeze so the coolant mixture will freeze at a warmer temperature and it will reduce the corrosion protection if there is not at least 40 % antifreeze
If it gets cold enough the coolant will freeze and crack the block if there is no antifreeze.
Anti-freeze is a coolant that should be mixed 50/50 with water
Engine coolant is what I'm assuming you are talking about. Engine coolant is a mix of water and etholyn glycol (antifreeze). It pulls heat away from your engine block that builds up from the friction of moving parts. The coolant mix allows the coolant to get cold to a point and not freeze because of the etholyn glycol. It is also not good to put straight antifreeze into your engine because antifreeze does not have as much cooling potential as water antifreeze mix. Also if you have just antifreeze in your engine the antifreeze will boil at a much lower temperature than a mix of aproxamalty 50/50.
Antifreeze helps by not allowing the coolant to freeze and possibly crack the water passages of the block.
If you use plain water, below 32 degrees the coolant and engine block will freeze. Anti freeze also allow coolant to reach a higher temperature, ( plain water boils at 212 degrees F ) before boiling.
You should be running anti-freeze year round as it is a coolant also, hence the name "Anti-freeze/Coolant"
anti-freeze is recommended for use in the cooling system
When water/coolant freezes it expands with great force. It takes lower temperature to freeze coolant, this is why it is called antifreeze. When it expands it causes a great deal of damage to hoses and the radiator. If it gets cold enough even the engine may warp, but this is rare.
seriously? it tells you what temperature you engine coolant/antifreeze is. that is how your gauge on the dash knows what your temperature is at.
No, but you do need the full 50-50 mixture of antifreeze and water to get the maximum cooling and freeze protection.
coolant is a mixture of antifreeze and water (usually 50/50) If you were to use just water, you would not have either freeze protection or overheat protection. Water freezes at 32 degrees. Antifreeze could protect engine to -20 to -30 degrees. Water (with no pressure) will boil at 212 degrees. Antifreeze will delay "boil-over" to a much higher temperature (I am not sure of number)