Fluids in your vehicle should be able to take a POUNDING -40 degrees. Although, if the oil is too thick for winter it may not start (ask local parts store for oil specs) and if your antifreeze has too much water the cooling system MAY ruin your engine if it swells and freezes.
Antifreeze helps prevent a car's engine coolant from freezing in cold temperatures and also helps regulate the engine temperature in hot conditions. It prevents the cooling system from overheating or freezing, ultimately protecting the engine from damage.
if you mean the engine has seized up due to excessive heat... I don't think you can if you mean it froze due to extreme cold, you will need to warm it to above freezing and hope the act of freezing didn't damage the block
Temperaturs avrage around 86F [30C]
hotter
Yes, however, not recommended Your engine still needs coolant, hot or freezing outside.
The preheater warms up the engine so it will start easier and in freezing weather will help to avoid freezing of the coolant.
Vehicle may overheat (low coolant) Engine may freeze in cold weather (protection from freezing not adequate)
In the winter, when the temps go below freezing, there should not be any water in a car. It should be antifreeze, actual windshield wiper fluid, etc.... This will prevent any freezing.
It stops your car from freezing and not starting up in cold weather
If you have water instead of antifreeze in your cooling system, it will freeze! You won't be able to start the car, because the engine is connected to the water pump (which won't be able to move). If you have nothing in your cooling system (no water, no antifreeze, nothing else), then you need your head checked. Your car won't start either.
Engine oil is not going to freeze in your engine. It will get very thick but will not freeze.
In general, a coolant is any liquid that will keep your car from overheating. While, antifreeze is a liquid coolant that is formulated to withstand sub freezing temperatures without freezing to a solid state.same thing but different name,but i guess coolant is to keep your engine cool and the antifreeze also does the same plus it keeps your engine safe from frezing as well.