Oil drain plug

[AudiJeep@aol.com]

I decided to change the oil myself on my '92 100S today. Everything involved
in doing so is easy to access on the car, so I figured it would be simple.
But I could not get the oil drain plug loose at all. Any tips for getting the
plug loose? I always thought that overtightening the oil plug strips the pan.
I guess the last time the idiots at the repair shop changed the oil they
overtightened it using an air gun. Also, what type of gasket is on the oil
plug? TIA.

Craig
'92 100S (65k)