Get a new radiator or flush it out?
try taking out the thermostat and have you put to much oil and coolant in the radiator
the thick liquid would plug your radiator and ruin your water pump. and destroy your engine.
The viscosity of the oil may not be heavy enough to protect the engine.
Water
Most vehicles have a removable cap on the to of a valve cover to add oil. Coolant is added either into the radiator overflow bottle, of the radiator itself depending on how the system is designed to have it added.
Yes.
When a car is hot, keep the car running and add water to the radiator. When a car is cold, you can simply put the water into the radiator.
It can causes serious damage
They dry out.
Neither. Do not put an egg in the radiator, it will just plug up the passages.
where do you put transmission oil in a standard car?