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Thread: Cooling fluid ??

  1. #1
    Join Date
    Dec 2005
    Location
    Klamath falls/keno Oregon
    Posts
    466

    Default Cooling fluid ??

    60k since I change it...green or orange fluid??
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    dual lift pump
    Banks air intake

  2. #2
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,573

    Default

    Do you need to change it? Dexcool (OEM) is rated for 5 years or 150K miles, or forever. At any rate, don't use green. Use only Dexcool, or a quality brand labeled "meets or exceeds Dexcool", not just a coolant that isn't green. Premix or 50/50 with full strength and distilled water.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  3. #3
    Join Date
    Dec 2005
    Location
    Klamath falls/keno Oregon
    Posts
    466

    Default

    It’s been 3 years and 61k miles....has orange in it now
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    dual lift pump
    Banks air intake

  4. #4
    Join Date
    Feb 2000
    Location
    Montana
    Posts
    11,382

    Default

    Quote Originally Posted by spongebob View Post
    It’s been 3 years and 61k miles....has orange in it now
    Have a look at the following article about changing the Duramax water pump. There's a mention of the coolant and a couple photos that might interest you...
    https://www.thedieselpage.com/durama...xwaterpump.htm

  5. #5
    Join Date
    Dec 2005
    Location
    Klamath falls/keno Oregon
    Posts
    466

    Default

    Thanks
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    dual lift pump
    Banks air intake

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