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antifreeze change

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  • jim cear

    antifreeze change

    Changing my 63 SHP to HOAT from the green stuff per DB. Can someone describe best method to purge all old green fluid pls? Thanks
  • Bob R.
    Extremely Frequent Poster
    • June 30, 2002
    • 1595

    #2
    Re: antifreeze change

    The best method is to remove the drain plugs (both of them) at the bottom of the block and drain the entire block. On my car with the shielding in place that is not easy to get at. You have to remove the boomerang shield and on the passengers side that means removing the starter. Plus those bolts are difficult to remove and you could snap one or both. I drained all the fluid from the radiator put in clean water ran the engine and drained it again. I did this several times until the fluid looked clean.

    Comment

    • Bob R.
      Extremely Frequent Poster
      • June 30, 2002
      • 1595

      #3
      Re: antifreeze change

      The best method is to remove the drain plugs (both of them) at the bottom of the block and drain the entire block. On my car with the shielding in place that is not easy to get at. You have to remove the boomerang shield and on the passengers side that means removing the starter. Plus those bolts are difficult to remove and you could snap one or both. I drained all the fluid from the radiator put in clean water ran the engine and drained it again. I did this several times until the fluid looked clean.

      Comment

      • Richard M.
        Super Moderator
        • August 31, 1988
        • 11318

        #4
        Re: antifreeze change

        You can't mix the old green and the new type?
        Rich

        Comment

        • Richard M.
          Super Moderator
          • August 31, 1988
          • 11318

          #5
          Re: antifreeze change

          You can't mix the old green and the new type?
          Rich

          Comment

          • Richard M.
            Super Moderator
            • August 31, 1988
            • 11318

            #6
            Re: antifreeze change

            I found the container I used. I topped off the 59 a while ago with about a half gallon 50/50 mix of this:

            Havoline Extended Life Dex-Cool approved. It's orangey colored. No where on the label does it say not to mix with green type. Am I ok or is there a problem with what I did?

            I went to havoline.com and spent quite some time reading and it didn't say not to mix it with the "green stuff".

            Worried,
            Rich

            Comment

            • Richard M.
              Super Moderator
              • August 31, 1988
              • 11318

              #7
              Re: antifreeze change

              I found the container I used. I topped off the 59 a while ago with about a half gallon 50/50 mix of this:

              Havoline Extended Life Dex-Cool approved. It's orangey colored. No where on the label does it say not to mix with green type. Am I ok or is there a problem with what I did?

              I went to havoline.com and spent quite some time reading and it didn't say not to mix it with the "green stuff".

              Worried,
              Rich

              Comment

              • Jim T.
                Expired
                • March 1, 1993
                • 5351

                #8
                Re: antifreeze change

                I use distilled water to mix with antifreeze when I change it. I go to the trouble of removing the block drains on the initial drain of old coolant as well as the radiator drain. If your block drains have never been removed you should do it at least once to remove all the sediment that accumulates in this area of the block. You may be surprised how much trash can be removed. On my 85 with optionial cooling system the drivers side block drain has a coolant hose attached on a nipple and a knock sensor on the passenger side that I remove to drain the block. On my 96 both block drain locations have knock sensors that I remove. Removing both block drains will drain an estimated 1/2 gallon or more of coolant from the block.

                Comment

                • Jim T.
                  Expired
                  • March 1, 1993
                  • 5351

                  #9
                  Re: antifreeze change

                  I use distilled water to mix with antifreeze when I change it. I go to the trouble of removing the block drains on the initial drain of old coolant as well as the radiator drain. If your block drains have never been removed you should do it at least once to remove all the sediment that accumulates in this area of the block. You may be surprised how much trash can be removed. On my 85 with optionial cooling system the drivers side block drain has a coolant hose attached on a nipple and a knock sensor on the passenger side that I remove to drain the block. On my 96 both block drain locations have knock sensors that I remove. Removing both block drains will drain an estimated 1/2 gallon or more of coolant from the block.

                  Comment

                  • Chuck S.
                    Expired
                    • June 30, 1991
                    • 184

                    #10
                    Re: antifreeze change

                    Has anyone recently purchased the Zerex brand HOAT antifreeze?? I`m having trouble finding it here in So CA.

                    Comment

                    • Chuck S.
                      Expired
                      • June 30, 1991
                      • 184

                      #11
                      Re: antifreeze change

                      Has anyone recently purchased the Zerex brand HOAT antifreeze?? I`m having trouble finding it here in So CA.

                      Comment

                      • Rick C.
                        Very Frequent User
                        • March 1, 1986
                        • 183

                        #12
                        Re: antifreeze change

                        NAPA (at least here in upstate NY) carries Zerex brand HOAT (G-05)

                        Comment

                        • Rick C.
                          Very Frequent User
                          • March 1, 1986
                          • 183

                          #13
                          Re: antifreeze change

                          NAPA (at least here in upstate NY) carries Zerex brand HOAT (G-05)

                          Comment

                          • Terry M.
                            Beyond Control Poster
                            • September 30, 1980
                            • 15586

                            #14
                            Re: antifreeze change

                            In the Chicago area Autozone has Zerex G05. Some stors are out of stock, but they can check stock at other stores.
                            Terry

                            Comment

                            • Terry M.
                              Beyond Control Poster
                              • September 30, 1980
                              • 15586

                              #15
                              Re: antifreeze change

                              In the Chicago area Autozone has Zerex G05. Some stors are out of stock, but they can check stock at other stores.
                              Terry

                              Comment

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