I don't like going to the local oil changing franchise. It always seems like a circus and I often wonder if they've really done anything or if my drain plug is going to fall out. I am just not in a condition where I can do it myself. Now it looks like I can, as Cool Tools reports on the Topside Oil Changer.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.