If I'm trying to ';drain all the liquids'; out of an engine, is it as simple as taking off the oil pan plug?

Oil in filter. Water in block. Power steering fluid and freon ( not really in engine).If I'm trying to ';drain all the liquids'; out of an engine, is it as simple as taking off the oil pan plug?
For the oil, I would remove the drain plug and oil filter. Once drained I would put the plug and filter back on to keep dirt out.





You also have the coolant in the engine. There will typically be a drain at the bottom of the radiator. This will get most of the coolant out. There is usually one or more plugs on the engine that will allow additional coolant to be drained. On a V8, there will typically be two drain plugs, one on each side. On an I4, there will usually be only one drain plug on the engine.





The drain plugs on the engine are typically located low, several inches above the oil pan.If I'm trying to ';drain all the liquids'; out of an engine, is it as simple as taking off the oil pan plug?
No, all that will do is remove the oil. You will still have coolant in the cooling system, transmission fluid in the transmission, power steering fluid in the power steering, and brake fluid in the brake lines. That of course is the entire vehicle. If you are just looking at the engine alone, oil and coolant.
If by ';All the Liquids'; you are only referring to oil. If you want coolant you will have to open the radiator drain or remove the lower radiator hose.
sounds like you are going to scrap a vehicle. that includes the fuel tank, oil, filter, power steering, brake fluid,coolant, and any other fluids you can think of.