How much oil is the right amount to put into my 280 Z?

4.5 Quarts

  DatsunZsRule said:

4.5 Quarts

Use that as a guide, but still rely on the dipstick.

  speedyblue said:

Use that as a guide, but still rely on the dipstick.

Thats right. I didn't mention double checking the level with the dip stick because thats just common sence