Where is the motor oil drain plug on a JD316 garden tractor located?

On a JOHN DEERe 316 garden tractor, the motor oil drain plug is typically located on the bottom of the engine oil pan. It is usually a hex-head bolt that can be accessed from underneath the tractor. To drain the oil, you would need to position a container beneath the plug, remove the plug, and allow the old oil to drain completely. Always consult the owner's manual for specific instructions and safety precautions.