Steps 2 - 4 are the most important steps.
Prep is the key to optimal shine, color and depth. The LSP brings out what's there. Weak prep with a great LSP will net much less than optimal results. Do not skimp or be lazy for steps 2-4. The better the prep, the better the outcome.
2. Clay 1-3 times per year maximum - too much claying is not good!
Clay is used to remove debris / contaminants on the surface of your car. Wash and dry your car. Then run your hand over the painted surfaces. If it's not smooth and you feel any kind of debris, you could use a clay.
If you clay, you are starting all over and must clean, polish and LSP.
Clay is very easy to use. The most commonly available are Mother's Clay kit and Clay Magic from your local auto store. Either will work fine.
To use, just follow the directions that come with the kit. You do not have to use the lubricant provided. A spray bottle with a mixture of car wash soap and water works just fine.
If you drop it, do not use it! Clay is very sticky and will pick up any debris it comes in contact with. Even if you think it's ok, it's not. With a dirty clay bar you are are doing more harm than good. You are dragging debris over your paint over and over causing damage.
People have various techniques - side to side, front to back, circles. For each section I do, I do a left-right clay over the entire section and go back and do a front-back pass on the entire section.
Make sure you keep the surface nicely lubricated and knead the clay often.
You do not have to wash your car after claying, but you can if you want.
