I found this article last weekend, good reading.

Black paint care 101

http://www.audiforums.com/m_42901/tm.htm

 

Black paint = Clay bar & wax for sure.

 

This is what i normally use for most GM paints...

Wash and Dry, duh...
Clay
Meguiars #83 via Makita rotary at 2k rpm's with green cutting pad
Meguairs #80 via Porter Cable at 3k opm's with yellow cutting pad
Meguiars#3 via Porter Cable at 1k opm's (only if it's a dark color)
Meguiars Gold Class wax (or equivalent).

Tires dressed with Meguiars high endurance gel, windows finished with Stoners invisible glass, and trim with Mothers natural shine.

 

Claybar, Zaino Bros. http://www.zainostore.com/Merchant2/merchant.mvc ,
leaf blower.
The Zaino Bros stuff works good, check out the testimonials on the website.

 

I use a water blade, then go over it again with a microfiber. i do this no matter what color the vehicle is, cause I HATE waterspots!!!!

Then I usually come back about 10 minutes later to get all the water that has dripped out of all the nooks and crannies.

For removing all the baked in waterspots and stuff, definately the claybar, then a good buffing and polishing.

I like it when I wash my truck and it looks like I didn't do a thing to it. (i wash atleast twice a week)

 

I go throught the touch free wash, with air dry, then 100 mph highway trip twice a week, then detail with PPC perfect detail spray with a micro fiber cloth. No swirls, perfect every time, only takes about 10 minutes twice a week!

 

Mother's wax and oxidation remover wipe on with microfiber wipe off than use an after wash spray on wax for a quick quality fix