There is a good article on gtv6.org about the V6 cyclinder head.
You can go to it directly here
Loosing a little coolant does not nesecarily mean you have a blown head gasket. You may just have a leak somewhere. If your head gasket is away you normally get oil in the coolant header tank (looks like cream) though not always!
You can go to it directly here
Loosing a little coolant does not nesecarily mean you have a blown head gasket. You may just have a leak somewhere. If your head gasket is away you normally get oil in the coolant header tank (looks like cream) though not always!