your gonna want a vg30dett v6 twin turbo dual over head cam
should eather be at the top in to engine or on bottom hose coming from engine
It's almost impossible without removing the engine, unfortunately.
Yes.
It depends on the climate in your area. But 10W30 will work just fine.
The "1990 Nissan 300ZX" was a very popular model in it's time. The "Card ID" website noted the carrying capacity of the "300ZX" was noted to be a hefty 1500 pounds.
A Nissan 300ZX? No
check your idle control valve located behind the engine
http://www.zshop.net.au/Z32tech.htm
The main relay on a 1990 Nissan 300ZX is typically located in the engine compartment, near the fuse box. It can be found on the driver's side, near the firewall. For specific identification, refer to the vehicle's service manual or a wiring diagram, as the exact placement may vary slightly depending on the model and engine type.
On the underside, passenger side, of the transmission.
226
it is located on the transmission itself