I have two questions. I put the Zerex G40 50/50 Pink colored antifreeze. Is that ok? The other is I changed the intake manifolds and when I tried to start the car it started leaking alot of antifreeze? Do you think that is because I put the wrong antifeezer? Thank you
No, the antifreeze did not cause a leak. Improper installation is the problem if that is where the leak is.
You are going to have to replace the manifold gaskets again. They may have been bumped when placing the manifold on and were not properly aligned when you bolted the manifold down.
Any coolant would have leaked.
Yosemite