Q: Reservoir keeps being empty no visible leaks and oil looks good color

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My coolant reservoir keeps having to be re filled, checked for visible leaks can't find any checked color of oil and looks normal truck runs fine. About a week ago in traffic it overheated checked it, it was dry including radiator filled em up and ever since then the reservoir just won't hold antifreeze 4 long but the radiator does. Any ideas thanku

My car has 190000 miles.
My car has an automatic transmission.

The reservoir is going empty due to a blown head gasket most likely. You will need to have the system pressure tested first to make sure the radiator and coolant reservoir is not leaking under pressure. I suggest having a qualified technician, like one from YourMechanic, diagnose the coolant leak firsthand for an accurate repair.

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