The extra-cautious reader may consider priming the engine’s oil galleries by attaching a pump to this port in the front driver side of the engine. This can be as simple as a hand-operated pump, so long as you have a fitting with the correct threads. (Depending on your underhood configuration, this may be easier to do before installing the engine into your vehicle.) Once you do this, make sure to reinstall the oil gallery plug with fresh Teflon-based sealant on its threads.