Thank God I ran across this, since I have had any of the cars, I just wait until the light comes on and put in a gallon, never an issue.
I had the car all torn apart doing custom body work and some repairs (and had the reservoir out) and did my last oil change at a friend's shop and just used his filler nozzle, sure enough, fluid everywhere. I thought I had a leak from when I reconnected everything, this is great news