Ok i just filled the coolant about a month ago. And now the car is saying low coolant again. It has lost some coolant when i check (not alot maybe a few pints) it but there are no apparent leaks. I also know its not the head gasket because it was just replaced 2 months ago. I'm wondering what is normal for coolant consumption? Also since the coolant overflow is not airtight at the top could this have something to do with losing coolant. Where I live now its between 95-120 every day. Also sometimes the light goes off after I drive it for a while and it never runs hot so I'm wondering if this is normal.