TIL car tires are black because one manufacturer wanted "more distinguished looking" tires and had carbon black added to the white rubber; the result lasted 4-5 times as long

http://www.bntraaca.org/index.php/misc/2013-07-03-16-49-12/why-are-tires-black



Submitted April 08, 2015 at 11:22PM by inexplorata http://www.reddit.com/r/todayilearned/comments/31wct2/til_car_tires_are_black_because_one_manufacturer/