I'm preparing to change the coolant (antifreeze) in my '99 Holiday Rambler. It is a Cummings ISC 8.3L (350hp), with 70+k miles. I'm choosing to replace the fluid with SCA (currently in there), instea...
I did a write up on the difference between the two in the context of RV Plumbing Antifreeze (not exactly the same in automotive). It still explains the plusses and minuses of Propylene Glycol if used in plumbing, HVAC or automotive. Link
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