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  1. AD (2017-2020) Elantra
    Hi. My coolant reservoir (aka overflow tank) was almost empty on my 2018 Elantra. I filled it with 50/50 mix of Prestone green anti-freeze and distilled water. I filled to the F line, and I could see the bright green fluid color. Two weeks later, I checked the fluid and it was still right by...
  2. Other Hyundai Models
    Hi guys. I am looking to flush the coolant system on my hyundai. The general process I am taking is: 1- Drain the coolant from radiator 2- Refill with distilled water 3- Drive the car and let it get to operating temp 4- Wait for it to cool and drain 5- Repeat from step 2 till the distilled is...
1-2 of 2 Results