`i_fw_coolant_type` value can't be parsed in the MFILE

<img width="1313" height="144" alt="Image" src="https://github.com/user-attachments/assets/05c78292-1304-48c9-8abc-3d94c627695f" />

The value of `i_fw_coolant_type` can't be parsed in the MFILE as its value is a string, but its type is an int: 

<img width="332" height="130" alt="Image" src="https://github.com/user-attachments/assets/49c278a2-1f4b-40fd-80b2-460e9d8c8c1a" />