So, I bought a used bike and went to change the oil when I realized the plug's head was stripped out pretty bad. After trying very carefully to to get it out, I was unsuccessful. It was stripped to badly and I tried using a pair of vice grips......maybe not smart???? At any rate, the head of the bolt looks like a badger has been nawing at it. I CANNOT get the bolt loose, does anyone have any ideas? The head of the bolt now is really mashed and I cant figure any way to get it out. Thanks for the advice!!