Good to hear that's just a dump vent. The car was not running when I tried to fill the case. I stopped after less than a 1/2 quart was added when I heard it running onto the garage floor.

However, the dipstick did read super low when it was running and warm though. I noticed as I tried to move the car off of our driveway and it kept jumping in and out of gear. I'll check it again tomorrow.