Yes it can, as long as the engine is running. Be careful when taking the radiator cap off thou, cause its under pressure.
If it has never had any water/coolant added, then no it doesn't require antifreeze.
Doubtful !... The antifreeze is added to the radiator - to keep the water above freezing point. There is no way of the engine knowing how much antifreeze is circulating.
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Antifreeze helps the engine run cooler in the hot months and prevents the coolant from freezing in cold weather.
In countries which have a winter season ALL cars should have the correct amount of antifreeze added to their coolant fluids. If this is not added and the fluid freezes the expansion of the ice will crack the engine block.
If you start and warm up your engine: 1) The oil gets very foamy and mucky, and does not circulate through the engine properly. 2) The water in the antifreeze can heat up until it turns to steam, which expands with great force, and breaks some part of the engine. It's best to have the oil changed. That will empty the engine of the oil and antifreeze mix.
It doesn't matter,
No. Antifreeze is added to the engine cooling system to help the engine run cooler and keep the water from freezing in the winter. A refrigerant (also called freon) is what makes the a/c blow cold air.
That depends on the fluid being added: Automatic Transmission Fluid (ATF) should be checked after the engine/transmission are warm (has been driven several miles) and fluid can be added while the engine is running. After new fluid is added, the trans should be shifted through all the gears (Park - Reverse - Neutral - Drive - 2nd - 1st - 2nd - Drive - Neutral - Reverse - Park) stopping for a moment in each gear to allow the transmission to get 'in' to the gear, and placed back in Park before rechecking. Oil should be added without car running, then started and run for a few seconds, turned off and recheck. Antifreeze should be added to a cold engine, and can be added when you first turn car on, but after the thermostat opens (warm/hot engine) the level will drop and you can overfill it (excess will run out of the reservoir when it cools back off due to pressure it creates). Antifreeze is typically added to the reservoir to the indicators on bottle. Manual Transmission Fluid does not require engine to be on or off. All other engine fluids (Brake, Power Steering) should be added with engine off. Windshield washer fluid can be added at any time. Hope this helps...
Antifreeze is a noun. It refers to a liquid typically added to a car's radiator to prevent the engine from freezing in cold temperatures.
Yes, if you drained it out before starting it should be ok.
There is a reservoir container marked "coolant" in the engine compartment. Add a mixture of 50% antifreeze and 50% water. (If you use "50/50" or "pre mixed" antifreeze, DO NOT ADD WATER). Let the engine get warm and fill to the full line.