Quote
Personally I prefer to see a vintage engine that has either been fully cleaned down and painted, or left alone to show the real vintage patina and that includes the spots of rust. I just don't like the appearance of a rusty engine that looks like it has been soaked overnight in a tub of pig fat in order to "preserve" it.
G'day vint-mow and Norm

This is an important topic - and I feel it should be
moved to Tech Talk - because this is a technical question about
long-term preservation of goods and the best way to preserve patina.

Maybe Glo Mod Gadge has some specialist advice here?

Many thanks for asking the question.
----------------------------
Jack