How do you change the transmission fluid on 1991 Mazda miata?

To change the Transmission Fluid on a 1991 Mazda Miata, first, ensure the vehicle is on a level surface and secure it with jack stands. Remove the transmission drain plug to drain the old fluid completely, then replace the plug and torque it to the specified setting. Next, remove the fill plug and use a funnel to add new transmission fluid, ensuring you use the correct type specified in the owner's manual. Finally, check the fluid level and replace the fill plug securely.