Originally Posted by Overboost

The X is my daily driver so it does get dusty under the hood after a month or so. So once a month i simply wipe the top with a damp towel when I am drying the car after a bath and once a year I give it the Scrubbing bubbles treatment. Yeah, Aerospace 303 is a great product, I only apply it when it gets the full treatment.

Here's a peek of my 3 series, w/200,000 miles, same treatment...