Go to an auto parts store and get a filter kit. The kit has filter, and
pan gasket. Some come with gasket folded,
unfold, put in sun 1/2 hour to flatten. Always replace gasket, used one may
look OK, but is probably cooked.
Have several large pans handy, as aprox 1 gal will come out. Loosen
bolts a little at a time until fluid
leaks out. This gets messy, have pans handy. Once pan is off, clean
throughly, the bottom will have a
metallic mess, that's normal. Brake cleaner, and paper towels make short
work of cleanup.
Carefully scrape away old gasket, put some contact cement on pan, and
glue new gasket into place,
while glue dries, pour oil into jugs, and change filter Bolt up cleaned /
re-gasketed pan, tighten bolts gently, and evenly.