Oil changes, I think I am going to start doing it on my own

[guruerror]

What are ya'll doing with the old oil? When I was a kid and would help my grandfather change his oil we'd always take the dirty oil out the field behind the house and dump it down a sink hole...(man that sounded real country...lol)...

So...what are we supposed to do now-a-days? As I'm sure some granola-cruncher has come up with a PC, environmentally-responsible way of dealing with its disposal.

Trust me though, if I had a sink hole in my back yard I wouldn't even be asking this question.