Where do you put the transmission fluid in a 1993 Nissan Altima?

There is no transmission fluid reservoir that requires filling on a 1993 Nissan Altima. Nissan recommends a transmission fluid exchange service approximately every 30,000 miles, or according to your owner's manual. At this time, your local technician will remove, clean, and reinstall the existing transmission fluid filter screen while also refreshing all of the vehicle's transmission fluid.