I'm sorry , but this really is a joke right ? Well if it's not. The color makes no difference. Don't put straight antifreeze in it. It's sold premixed 50/50 or you can mix it yourself. In the winter you want it to be about 70/30 ( more antifreeze than water ) or if it's already got 50/50 in it, top it off with straight antifreeze. May have to drain some out to do this. They make testers to check it, there at the parts store and most gas stations.
You'd also need fenders and hood from a 1998-2002 model for a satisfactory conversion
5 1/2 qts.
If you have all the front parts then yes, you should need to replace the headlights, fenders hood, and then the nose.
need to change more often
I need the fuel pump diagram of the fuel lines to connect
You will need a intake manifold set and possibly a plenum gasket set.
The gear between the driveshaft and the transmission is broke you need a knew one
The Best coolant for your 350Z is the original coolant from Nissan or a coolant with the same color the you have in now in your vehicle. Some cars need a special type of fluid which you can check in your owners manual.
If the engine coolant is rusty color you would need to have the engine cooling system flushed and then a new 50 / 50 mixture of preferably distilled water and antifreeze used to refill the system
Would really need a more detailed description of the problem, including the circumstances under which it happens.
Is it an automatic? If so, you may need to change the transmission filter and fluid.
3/4 coolent 1/4 water. that's it!