The automatic Transmission Fluid dipstick is just to the passenger side of the
engine by the firewall
According to the 2006 Ford Mustang Owner Guide : The ( 5R55S ) automatic transmission does not have a fluid level dipstick
In the dip stick tube on the left side of the engine toward the back. It should be marked TRANSMISSION.
I believe that is Motorcraft MERCON automatic transmission fluid , pull your transmission dip stick out and confirm with printing on dip stick
Look in your owners manual
Most likely it will take mercon transmission fluid. Not to be confused with mercon V transmission fluid. To be sure pull the transmission stick out and read the side of the stick. It will tell you what fluid to use.
The automatic transmission will have a dip stick location on a 1982 Honda Civic. Pull the dip stick to see the color and texture of the fluid.
It is written on the transmission dip stick what type of fluid is used in that automatic transmission.
Through where the transmission dip stick tube.
Through the transmission dip stick hole.
Assuming we are talking about an automatic transmission, you remove the transmission dip stick and pour fluid into the dipstick tube.
in the dip stick hole.
Add automatic transmission fluid through the dip stick tube. No kidding!