Had a 1/2 gal o green and found a bulb. I don't think the car will actually get hot enough to open the Stat. Drained a Lil, added bout 1/4 gal, and shook up the rad. The wind trashed my car cover the other week, so I have some blankets I'm gonna try and use. A Lil paranoid, don't wanna burn her down! May use them outside the car