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Thread: 1986 MGM radiator capacity (5.0)

  1. #1
    I post a lot... Toploader's Avatar
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    Default 1986 MGM radiator capacity (5.0)

    Gents,
    How many quarts of coolant does my radiator hold?
    Its five years since I changed the coolant and want to p/u the correct amount of gallons for the job.

    Should I go with 50-50 pre-mix?

    Thanks

  2. #2
    Member EaOutlaw1969's Avatar
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    Quote Originally Posted by Toploader View Post
    Gents,
    How many quarts of coolant does my radiator hold?
    Its five years since I changed the coolant and want to p/u the correct amount of gallons for the job.

    Should I go with 50-50 pre-mix?

    Thanks
    According to the site I provided a link below to it shows this for cooling system capacity
    12.6 liter / 13.3 U.S. qt / 11.1 imp. qt

    https://www.automobile-catalog.com/o...is_4-door.html

    I like to use distilled water with any cooling system ( what type of water are you paying for with the 50/50 Mix ? )
    2007 Ford Crown Victoria LX Sport

  3. #3
    I post a lot... Toploader's Avatar
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    Forgot to mention that I use "No-Rosion" when I re fill. LOL.......the Prestone says water is RO.
    Quote Originally Posted by EaOutlaw1969 View Post
    According to the site I provided a link below to it shows this for cooling system capacity
    12.6 liter / 13.3 U.S. qt / 11.1 imp. qt

    https://www.automobile-catalog.com/o...is_4-door.html

    I like to use distilled water with any cooling system ( what type of water are you paying for with the 50/50 Mix ? )

  4. #4
    Member EaOutlaw1969's Avatar
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    No-Rosin sounds like some good stuff.
    2007 Ford Crown Victoria LX Sport

  5. #5
    Beater gonna beat sly's Avatar
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    If just refilling after replacing parts... typically 2 gallons of 50/50 is enough. If a complete engine replace and empty heater core... 3 gallons and you'll have some left over. My 93 with the F150 dual core radiator takes 3 full gallons on a radiator replacement (heater core not drained and some left in the block). So you shouldn't need any more than 3 gallons. I use 50/50 for convenience. If you have a spare container to mix in, distilled water and concentrate will save some cash unless you value your time.

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  6. #6
    I'm an air-conditioned gypsy gadget73's Avatar
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    About 2 gallons for a drain and refill is my experience. 50/50 or just buy one gallon of full strength and a gallon of distilled water. usually costs less, but Harbor Freight usually has premix for basically the same price I can make it myself. Go in with a 20% off and you're good. If not in a hurry and its not a waste of fuel, go twice and use the discount each time. Threre is always one on their webpage.

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  7. #7
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    Thanks guys!!.............greatly appreciate the education. Just want to say that No-Rosion is a fabulous product, it should be on everyone's short list of must haves when dealing with automotive cooling systems.

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