Alright so I have an interesting problem. So yesterday on my way to work I notice my temp gauge peaks up over where it usually sits. I stopped in Walmart and checked the res and it's bone dry. Picked up a bottle of coolant and refilled to the proper level. So I get home and checked the coolant level and it's still filled. This morning I checked the level before leaving for work and it's almost bone dry. Where is this coolant disappearing to? There's no leaks under the car. The car isn't burning coolant. No coolant in the oil. No coolant in the floorboard It's just seemingly vanishing. It's a 2007 3.5L.
Crimson Red 2007 Pontiac G6 GT
3.5L V6 with automatic transmission
Dark Forest Green 1996 Ford Mustang GT
4.6L V8 with 5-speed manual transmission