a washing machine, with little parts that can be replaced with wood or metal, seems like the kind of thing that can be kept in good working order for a long tim

a washing machine, with little parts that can be replaced with wood or metal, seems like the kind of thing that can be kept in good working order for a long time. I'd be leery of a chainsaw with handmade parts. I also kind of wonder about lubricants and fuel in a chainsaw, how hard is it to safely duplicate those oils?