points off for Tire Dressing in AACA - Class Judging Posted May 7, 2011 Ive always had good luck with using Meguiars #39 heavy duty vinyl cleaner for my vinyl products such as my seats and vinyl top and then for rubber and vinyl conditioning, I use Meguiars #40 Vinyl / Rubber cleaner and conditioner. With having a pearl white vinyl top and a white interior, I can attest as to how much of a pain it is to keep these items clean, especially with driving the car on highways getting diesel soot all over my car. So far, with light scrubbing and this product, it comes right out. As for the tires, it leaves a nice semi gloss shine. Not too dull and certainly not that shiny. It also prevents the rubber from turning brown with aging too!