Mitsubishi NDiff Oil Ecology API GL-5 SAE 80 (Part Number KL3T-MZ320744) is a specialized gear oil designed for use in the rear differentials (also known as rear axles) of Mitsubishi vehicles and possibly other compatible applications. This particular gear oil meets the API GL-5 specification, which is a performance rating indicating its suitability for various applications, including those with hypoid gears in rear differentials.

The SAE 80 viscosity grade indicates the oil's thickness or viscosity at a specific temperature, which is important for proper lubrication and protection of the gears in the rear differential.

When it comes to changing or topping off the differential oil in your Mitsubishi vehicle, it's essential to use the correct type of gear oil as recommended by the manufacturer. To ensure you're using the right oil for your specific model and year, consult your vehicle's owner's manual or contact a Mitsubishi dealership for guidance.

Typically, you can purchase this type of gear oil from a Mitsubishi dealership or authorized parts supplier. Always adhere to the manufacturer's recommendations regarding fluid capacity and change intervals when servicing your rear differential. Proper maintenance of the differential is crucial to ensure its long-term performance and durability.