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Cadillac DTS Forum - 2006 through 2012 Discussion, want to flush Dexcoool coolant in Past Cadillac Vehicle Discussion; There's a petcock on the bottom of one of the radiator end tanks....
  1. #16
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    There's a petcock on the bottom of
    one of the radiator end tanks.

  2. #17
    Ozlander is offline Cadillac Owners Member
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    Re: want to flush Dexcoool coolant

    Quote Originally Posted by 5.0 lsc View Post
    Just had my dealer do it . Im at 72k. It was only 139.99 you cant beat that
    Last year, I changed mine after 6 years. Cost me 25 bucks.

  3. #18
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    It should be changed every 2 years, 3 max.

  4. #19
    Baccerman is offline Cadillac Owners Member
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    Re: want to flush Dexcoool coolant

    Not on the DTS there aint'......
    Superjim, jazoo and Tom's Caddy like this.

  5. #20
    Superjim's Avatar
    Superjim is offline Cadillac Owners Connoisseur
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    Re: want to flush Dexcoool coolant

    Quote Originally Posted by Baccerman View Post
    Not on the DTS there aint'......
    Right... no petcock on these...

  6. #21
    Ozlander is offline Cadillac Owners Member
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    Re: want to flush Dexcoool coolant

    Quote Originally Posted by 5.0 lsc View Post
    Just had my dealer do it . Im at 72k. It was only 139.99 you cant beat that
    I can beat that by more than 100 bucks.

  7. #22
    Stepside is offline Cadillac Owners Enthusiast
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    Re: want to flush Dexcoool coolant

    What MoistCabbage said is Correct.

    The confusion here comes from the older Green antifreeze that had silicate in it.
    The Newer style which says it is compatible with all antifreeze is a different color green and same formulation as Dex.

    BUT WAIT --> There Is A Difference . . .

    and the Answer Is .. .

    COLOR . ~

    . . . like when I take my vitamins . . -
    the pee is a different color, but the gaskets in my toilet are Fine.

    The new antifreeze is a lighter more translucent color green
    As opposed to the older darker green silicate antifreeze,
    which to my knowledge is scarce
    or not readily available in most stores.

  8. #23
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: want to flush Dexcoool coolant

    ............. and to further cloud the issue, Prestone is now marketing a bright yellow long-life coolant that mixes compatibly with any coolant on the market, either here or overseas.

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