Originally Posted by Trey
I knew it! The old timers around here must go through a ton of that stuff a year, and I haven't seen any evidence that it makes any difference.
On the other hand, though, I might have been putting the graphite to the wrong use. It might be just the thing for locks that have more complex mechanisms and are kept indoors.
But a U-lock that is exposed to the weather? Maybe that graphite merely turned into a wet, then frozen, sludge.