At the dealer for another issue, the service rep informed me of a frame-rust recall. They applied a rust prevention treatment they called CRC, which is technically Noxudol OS. It's been a month since they applied the CRC, and it is still gooey. Every time I touch the underside of the truck, I get the black goo on my hands, and half the time, on my clothes, too. So, questions: Does this stuff ever harden? If not, does it wash off over time? Is there a better way to get it off? At this point, I regret having CRC applied. Sorry if this has been discussed in the past. I'm new here and search didn't find anything.