Clay bar, I was a bit sceptical at first.

NS370Z

I put the clay bar to the Z yesterday and I can't believe what a difference it makes to the finish. First I gave it a good wash with the two bucket system with Adams car wash shampoo. Gave it a good rinse then used the slow flow method to get rid of the major water beads. Then blot dried a few remaining water beads with the waffle weave and got the crevices etc with the Metro Blaster Sidekick. I was amazed at how much extra water came out of the nooks and crannies. I kind of had buyers remorse when I bought the Sidekick but it's a wonderful tool and will be used often. The clay bar and Adams detail spray really cleaned up the finish. Even after washing and appearing spotless I was amazed at how much junk came off with the clay. My Z only sees the occasional cruise, no winter and is garaged at all times unless I take it out for a drive. After claying, I gave it the baggie test and it was as smooth as glass. Anyone wanting to improve the finish before paint correction, waxing etc I would highly recommend claying. Just thought I'd add my 2 cents, just stoked that it made such a difference.