What type of transmission fluid for a 2003 Nissan Xterra?

For a 2003 Nissan Xterra, you should use Nissan Matic D or an equivalent automatic Transmission Fluid that meets the specifications. It's important to avoid using fluids that are not recommended, as they can affect the transmission's performance. Always check the owner's manual for specific recommendations and fluid capacities. If in doubt, consult with a professional mechanic or a Nissan dealership.