I don't know, if it's the 4.5... I remember ice forming on the center vents on longer highway trips on 90°+ days. I would say if it's 60°, something is wrong. Never had experience with a 116 to call that one.

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Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k