* Specific Requirements: The correct transmission fluid depends on the *exact* model year, engine size, and transmission type. Some transmissions use specific types of gear oil (like GL-4 or GL-5), while others need specialized fluids.
* Owner's Manual: The most accurate information is found in your vehicle's owner's manual. It will list the recommended fluid and specifications.
* Mazda Dealer/Mechanic: If you don't have the manual, contacting a Mazda dealer or a qualified mechanic is your next best option. They can look up the correct fluid based on your vehicle's VIN.
Important: Using the wrong type of oil in your transmission can cause severe damage, leading to costly repairs.