This last couple of years I've been doing all my own maintenance on my TJ. I bought the Jeep in 2004 it had seven miles on it. Recently I noticed that what appeared to be oil on the driveway. It wasn't much just a few drops maybe everyday or every other day. So I got everything necessary and it took me the last month to get two screws out of the starter to get it out of the way of some books that were in the oil pan. And then it took me another week to get the exhaust pipe out of the way. So I finally got the oil pan down yesterday. I expected to see some Sledge a magnet and possibly metal slivers or whatever because my Jeep now has around a hundred thirty thousand miles. But I didn't find that at all. There was no magnet. But there were items that look like pebbles are rocks that were jagged and very irregular in shape. I was extremely concerned cuz I thought it was Pisa to the engine like something had broken. But I hadn't had any issues with my engine running. I took the pieces out and put them on a paper towel and started doing research or trying to. nobody had any answers for me there's nothing on the internet that I could find. I even asked some mechanics that I know that in the family and friends. No one had any answers. After a few hours I went back out because my brother told me to hit it with a hammer to see what it was made of. I don't know if this was a good thing or bad thing because I noticed the items or what seems to be more like pebbles than anything we're slightly different because they were dry now. They were very light. Whereas before I wasn't sure if they were aluminum pieces or pebbles. Now I could crumble them with my fingers and they just turn to dust like charcoal. I smelled them and they had a petroleum smell to them. Does this make sense to anybody out there?