Take the battery cables off disconnect the circut, wait a few minutes re-hook up the battery
It's the same engine in both.
If same engine and transmission models, yes.
5 quarts
The engine computer is the regulator.
Six quarts
The 2006 Jeep Grand-Cherokee has a V6 engine.
The 2013 Jeep Grand-Cherokee has a V6 engine.
The 2007 Jeep Grand-Cherokee has a V6 engine.
The 2012 Jeep Grand-Cherokee has a V6 engine.
The 2011 Jeep Grand-Cherokee has a V6 engine.
The 2005 Jeep Grand-Cherokee has a V6 engine.
The 2009 Jeep Grand-Cherokee has a V6 engine.