How Long Does A Bottle Of Coolant Last Once Opened?

Coolant is an essential liquid for internal combustion engines, but it doesn't last forever. Here's how long an open bottle will remain fresh.

  Car Talk, Autos   Oct 7, 2025   0   10  Add to Reading List
How Long Does A Bottle Of Coolant Last Once Opened?
Coolant is an essential liquid for internal combustion engines, but it doesn't last forever. Here's how long an open bottle will remain fresh.

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