The owner's manual will have a section specifying the oil capacity for your particular NPR's engine. It will usually list it in quarts or liters. Looking at the sticker under the hood (if it's still present) might give you a clue about the engine type, which will help you narrow down your search online if you don't have the manual.
Without knowing the exact engine type (e.g., 4HE1, 4HK1), giving a definitive answer is impossible and could lead to incorrect oil levels. Always refer to the owner's manual for accurate specifications.
