I have just purchased a 2001 Tacoma 2.7L 4WD.
I have changed the oil and discovered something I have'nt seen before.
This truck has an oil pan drain bolt that looks like it is a "zirc" fitting. It has a rubber cap that when removed exposes a core that looks like a zirc fitting! A brass ball is somehow depressed and drains. Looks as if a "spigot" can be inserted to drain the oil without removing the bolt. Anybody heard of these? Danger of leakage?