Yeah your supposed to use detail spray like Andrew said.

I would not use 'extremely watered down Armorall'.

That stuff is for the interior, not the exterior... even if it is extremely watered down.

Armorall is silicon, which I have never seen in any wax, polish, or paint product. It's used on interior, and on tires to give them that new tire shine. Especially on our car, they tell you DO NOT use Armorall on the interior, as it will take off the silver or black paint. If it's taking off the interior paint, I'm not about to use it on my exterior.

Good idea to keep the grain going in one direction.

Use detail spray.