Easy as pie,

Take out filter, dump out oil, use paper towel to clean out gunk on the bottom and all oil.

As for the filter, not really sure the "best way" or how easy it is toget a new fitler element. I've never looked (I'll do that when I have a bit more time). But I would guess any solvent or brake cleaner might work, but may be unecesary as oil can be dirty as it wants as long as it still catches more dirt, and I think just putting new oil in there would work more than fine.

If you find any info on the oil filter replacement post it as I would like toknow as well

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76 300D 130K "Stella" (Sold )
74 240D 299K (Donated to Highschool For Senior Project WVO)
83 300TDT 290K (My one and only)
Sanford, NC