It is possible to put water only in the reservoir for coolant on a car. However, this should only be a temporary fix until it can be repaired by a mechanic.
Never put just straight water in your motor. You want to top off your radiator first then top off your coolant in the reservoir. Water will rust your motor from the inside out.
Yes
I would only put water in an emergency situation where I don't have coolant available. The coolant helps the engine to not overheat and to not freezing, while that could happen if you just use water. If you don't have your vehicle's manual to know the specification of the coolant, you can use the generally available Prestone and add water according to the table on the coolant's recipient. (or you can buy the pre-mixed formula)
The coolant goes into the reservoir only that says coolant. You don't put it in the radiator.
water, anti freeze or coolant.
The water and coolant is put in the coolant reservoir for the location of this refer to the owners manual. It is best to do this when the engine is cold otherwise you run the risk of getting boiling water all over you. the mixture of coolant to water should be about 50/50.
Yes, you can. But if you leave in cold area you will have to replace with proper coolant closer to winter. Otherwise it will damage not only your radiator but also the engine.
If there is no risk of freezing , but it will weaken the strength of the antifreeze / water coolant mixture
coolant you retard not water!!
water will work until you can get proper coolant
Does the coolant look milky if so you have a oil cooler leak, these cars have internal oil coolers that are known for springing leaks. Check your head gasket, sounds like it is blown
you should only use a 50/50 mix of coolant and water, otherwise corrosion will destroy the insides of the motor