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coolant tank
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  1. AD (2017+) 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...
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