Since 1996, OBD II regulations have required that the fuel supply system be checked for leaks as small as .020 in. As fuel is used, air must be allowed into the tank to prevent a vacuum from forming. But how do we help prevent fuel vapors from escaping.
BMW provides sophisticated climate control systems, but sometimes you just want to open the windows and breathe in the fresh air.Or, how about paying tolls? For whatever reason, do you know how to prevent window pain?