I learned something interesting today, that may help someone out.

This car:


Uses the same oil filter as these motorcycles:





Wix 51358 or KN-175 or Mobil M110A is what I've been using. H-D oil filters are made by Mahle, and it's been my experience that the local auto parts store may or may not have the filter I want, but the Harley dealer WILL have a filter for a Street 500, 750 or 750 Street Rod, and it won't be some $25 filter, either. They cost the same as a normal oil filter.