More than helpful...just a couple more...with regards to the plastic trim..does the clay affect it, do I keep it well clear of it?
How much clay would I use for the whole car...im not sure what size of bar covers what amount of car, and do you fold/ kneed the clay after every spot?..or jsut now an again..tho kneeding/ folding more in trouble areas?
I don't think clay affects the plastic trim, but neither does it do any harm. No need to steer clear!
I used about 2/3 or 3/4 of the bar I linked you above to do the whole fiesta. I would cut the bar into four and kneed a quarter into something between the size of a custard cream and a digestive biscuit. (can you tell I'm hungry?!). I would then fold over the piece of clay every now and again, maybe once or twice per panel, or until it looks too dirty. Some panels, such as the roof, youll be able to do the whole thing and it will hardly pick anything up. As you clay, you'll see that the clay bar picks up the crap off the surface and becomes dirty itself. You'll need to throw the clay away after you've finished with it. Remember, you can never use too much lube! The more the better in my opinion.