This whole thread, and the other concurrent ones, are becoming a joke, and not in a funny way. I know I'm a grumpy old twat but things like "or did you just apply it once?" just make me laugh. In the last 52 years I've gone from James and Velocette to Honda, Suzuki, etc. and then onto BMW and Triumph et al.
There weren't things like ACF50 to cocoon or pamper your bike with. We had proper salt on the roads then and lots of it because it was cheap and we had harder winters with ice and snow for weeks at a time. The engineering and technology in the 60-80's was crap compared to now. We started buy "Jap crap" and found it wasn't so crap. It rusted a bit but so did everything else at the time. Vauxhall Victors left the factory with rust as a no-cost option. But the Japs worked at the problems and ended up with a far better product than was available elsewhere. Even the BMW's of the time weren't that bad.
There must be quite a few old bastards like me on here and I'm sure you'll not have experienced anything like this over the years where you have to wrap your bike in cotton wool and not take it out in the rain. That's another thing that makes me laugh, selling your bike and claiming it's "never been out in rain and only used in summer when it's dry"! Feckin' wuss, you shouldn't have a bike. Probably own matching twat suits.
The quality of these BMW's is shite, people complain and complain on here and then go buy another one. Good on yer, you deserve everything you get, so stop complaining and buy something else. My brand spanking new BMW rust bucket lasted under 3 months and 1,700 miles before it went back to the Fatherland. I was told I'd ridden it in the wet and salt had started the corrosion. I agreed and handed it back.
And another thing before I slink off to my cave. Has anyone ever bought an extended warranty for anything else apart from a BMW motorcycle or a chinese microwave (probably the same QC standards). Until I got my BMW I didn't even know there was such a thing.
We're doomed!