^^ they arent all bad
google Fumoto valve. (I think it's
www.fumotovalve.com )
i've had one for ~ 25,000 miles, and no issues, ever. other subaru owners have reported upwards of 80,000 miles on it, and never lost a drop through the valve. makes oil changes go that much faster, and if it's installed correctly, you'll never have to worry about a leak.