I bought a used 96 Grand Cherokee 5.2L Limited not too long ago and when I got under the car to change the oil I saw that there was no drain plug. Instead there is a cap that twists off and there is a cylindrical plug with threading and an o ring at the base. Anyone know what this is so I can drain my oil?

 

sound like some one stripped the factory plug can you post a pic

 

Here. I think it's probably what you said.

 

it looks like a jiffy plug its so you can go to a oil change place and they have a speacial suction tube to get the oil out with out a mess ive never removed one but in sure if you un thread it and go some wear and get a bolt thats the same as wat comes out and a o-ring it should be fine but ive never messed with one ive just seen them but the worst might be that you need another oil pan from a junk yard