http://www.f30post.com/forums/showthread.php?t=868291
So, somehow, by the power of greyskull, cars made before July 2013 are magically able to withstand longer OCI's.
Sometimes the over-enthusiastic enthusiasts are right. When they get this back down to 5-7.5k, we can all e-mail them at the same second: WE TOLD YOU SO!