Break the oil filter loose with a ratchet or filter wrench.

If the filter has a housing, remove the filter assembly and replace the filter inside.

Replace the O-ring. (A screwdriver may make this process easier.) Make sure the O-ring goes back into the same slot as before and lubricate it with some oil.

If your oil filter does not reuse the housing, skip these steps and go straight to lubricating the O ring on the new filter.

Brake clean can be used to clean the inside of the housing but it is not necessary.