Changing out Hybrid coolant resevoir
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Thread: Changing out Hybrid coolant resevoir

  1. #1
    Newbie
    Join Date
    Jan 2014
    Posts
    8

    Changing out Hybrid coolant resevoir

    I need to replace a leaking coolant tank and cant find the specs on the coolant anywhere.

    Has anyone flushed theirs or topped off? It's dark green so maybe it just undiluted ethylene glycol.

    I have the part and it looks fairly easy to change .

    Should I do a full system flush as well. 2013 Optima with about 50k miles

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  3. #2
    Newbie
    Join Date
    Oct 2018
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    5
    The seam split on my '13's reservoir as well. It calls for "polyethylene glycol" which is your typical green coolant. Believe it or not, it's just your regular stuff you can buy anywhere. It doesn't hold much, so just get the 50/50 jug and save yourself the hassle. I just topped mine off and that was about 30k ago. It still looks the same in the reservoir. I'm about to change coolant in both cooling systems since i'm now at 110k. Literally using the walmart brand long life stuff for both (concentrate w/distilled water.) I wouldn't worry about a flush unless you see sediment or contaminants anywhere.

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