I flushed the antifeeze 2 days ago because the antifreeze was solid brown and sludgy. The car was fine yesterday when I drove it to school. Today I pulled into school and antifreeze was spewing out of the bottle. I did have more antifreeze in it than the maximum line, so I thought maybe it was trying to dump the excess antifreeze out. But earlier on break at school I went out on break and looked. There was no antifreeze left in the bottle. I had some in my car I added. I added antifreeze to in between the min and max line. I got home and the car acted like nothing was wrong. No spewing like before. But now the antifreeze was on the minimum line. Could something be stuck from the sludge-like antifreeze that was in it before? Headgasket about to blow? I just blew one in my last car over winter...and I bought this car thinking it wouldnt happen. lol Atleast not this soon. It has 95k miles. By the way the temp gauge always stayed on normal, and the check engine light never came on. Any opinions would be greatly appreciated!