A 1993 Chrysler New Yorker requires a
50/50 mix of ethylene glycol-based coolant and distilled water. It's crucial to use a coolant that meets
Chrysler's specifications, often denoted as
MS-7170. You can find coolants specifically labeled as meeting this specification at auto parts stores. Avoid using anything other than ethylene glycol-based coolant.
Important Note: Never mix different types of coolant (e.g., don't mix green with orange or any other color). If you're unsure what's currently in your system, it's best to completely flush and refill the cooling system with the correct type of coolant.