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  1. #16
    Join Date
    May 2015
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    Louisiana
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    I flush with the garden hose then get my supply of many gallons of distilled and keep flushing to get the tap out, then drain as much out as I can again. Jack up the rear a little if you have to. Then pour your 2 gallons of straight coolant in the rad and save a little for the expansion tank, then top off with a little more distilled and that's about it. With a 14 or 15 quart system you'll end up about 50/50 maybe a little more but close enough.


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  2. #17
    Join Date
    Sep 2004
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    THanks

  3. #18
    Join Date
    Sep 2006
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    Calgary, Alberta
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    Quote Originally Posted by albow View Post
    Unless draining the block isn't too difficult (and if I understand right, it has some of those highly strippable NPT plugs to remove) I will but it sounds like not. THerefore, my plan is to drain, refill with water, drive until the tstat opens and repeat until clear. Also I have pure anti freeze, not 50/50.
    The block-based NPT plugs have HEX heads making them easy to R&R.
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  4. #19
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    Sep 2004
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    Quote Originally Posted by Hemissary View Post
    The block-based NPT plugs have HEX heads making them easy to R&R.
    Thanks for that info!

  5. #20
    Join Date
    Sep 2006
    Location
    Calgary, Alberta
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    Quote Originally Posted by albow View Post
    Thanks for that info!
    Did I tell ya its messy?

    Seriously, look carefully at the quality of the coolant that is initially coming out of the engine. Along with a really good inspection will dictate whether dropping the entire contents actually has merit.

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