Cleaning wheels - black gummy substance
#17
Thanks to everyone for the excellent suggestion! I'll go shopping this weekend and see what I can find locally. FWIW, this is what I use as a wheel cleaner now: http://www.autopia-carcare.com/sontirwhl.html
Ahhh...I'd wondered, because I didn't think I'd driven anywhere to pick up tar and didn't have anything on the front of the car. Oddly, only 3/4 wheels had the subtance on them.
Originally Posted by MJones
Just thought you might like to know what that substance is:
It is the adhesive that binds the brake pads to their backing plates that is released via heat generated under braking...
It is the adhesive that binds the brake pads to their backing plates that is released via heat generated under braking...