1997 Ranger flushing out 20 yr old coolant EP#3

The 1997 Ford Ranger has an unknown maintenance history and based on testing and observation of fluids with a very little amount of the known information of the previous owner I assume the coolant was never changed, drained or replaced.
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Music:
Musician: Band of one ( Kevin Messner)
Song: Wake up (revamped)
Song: Track 15
Song: Track 14
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Title song: Houses
Music with permission and courtesy of Jef Spradley. Link to his KZbin channel and more information on how to obtain his music. / @jefsprad9948