I've tested out the linseed oil and I think it's great. I soaked a rag in it and scrubbed it over the frame about a month ago and there are no signs of new corrosion. Within a couple of days it dries on to a reasonably hard satin (well, somewhere in between satin and gloss) finish - you can just about scrape it off with a fingernail, but obviously if you scratch it, you can just wipe a bit more on. It doesn't rub off on clothing. It does have a slightly amber finish which some people might not like - I'll get a photo up later.
I've tested out the linseed oil and I think it's great. I soaked a rag in it and scrubbed it over the frame about a month ago and there are no signs of new corrosion. Within a couple of days it dries on to a reasonably hard satin (well, somewhere in between satin and gloss) finish - you can just about scrape it off with a fingernail, but obviously if you scratch it, you can just wipe a bit more on. It doesn't rub off on clothing. It does have a slightly amber finish which some people might not like - I'll get a photo up later.