Approximately 22 ounces of any type automatic transmission fluid (ATF) is required to fill the reservoir to proper level for single actuator installations.
With the trim tabs fully retracted, proper fluid level is about 2" from the bottom of the reservoir.
#1 in the diagram.
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.
www.P65Warnings.ca.gov