I use Turtle Wax and Polish. I figure that the polish and waxes used on automobile coatings that are a Clear over Base Coat, or a Clear coat top coat, then they have to be delicate but effective. I have used Brasso before, but don't anymore after I read on this forum about what ammonia does to brass.
The wax works well and lasts a reasonable amount of time.
Just look at a good quality Car Polish when they are on Sale - check those Sunday newspapers for the sales. Last you for years.