They seem to have been chewing the box. The AC Delco one I have in storage has plastic film over the base which is tight-fitting and would keep them out, but the local brand filter has a rigid transparent lid which doesnt fit so well.
been meaning to pre-oil them, and I suppose this might be another reason to do it. Just need to score a suitable oilproof container.
been meaning to pre-oil them, and I suppose this might be another reason to do it. Just need to score a suitable oilproof container.