Would adding two quarts of water warrant concern to yall? I had the ole blinky temp light back when my water pump decided to start leaking, but mine was cut and (almost) dry the leak causing the low coolant levels.
Could that much water have evaporated from the top of the coolant overflow in the trunk? If I remember right the seals can get old with age and allow moisture to sweat out from the top.
Wouldn't hurt to take some of the trunk carpet out and just confirm your overflow tank isn't leaking. Seems like they're known to crack with age. I bought a spare from a Boxster part out just in case lol. Also, $40 for a clean low mileage one compared to the $300 for the part new!
