Our gutters are made of old-fashioned galvanized steel. That type of gutter was on the house when we bought it 32 years ago. We have since replaced all of the gutters with new galvanized steel.

I painted gutters on three sides of the house. The fourth side has a new gutter, and new galvanized gutters have an oily film on the surface of the metal, so I’m going to give it a year or so ...