I did take it to Toyota, because it was just about due for another oil change.
They said that someone, probably the dealer I bought it from, had used silicone to grasp the thread on the plug, because it had been leaking before.
They fixed it right, and didn't charge me anything extra for the fix.
They even gave me the discounted oil change coupon!


1995 Toyota Tacoma: 4X4, Extended Cab, 5sp, 2.7L 4 cylinder (3RZ), 31 X 10.5 BF Goodrich All Terrains.