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  1. #1
    Doo It Till It Hurts! holdnon72's Avatar
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    What Brand Anti-Freeze Do you Guys Use?

    I want to change the antifreeze in my 05 Sportster and looks like green antifreeze is whats in the boat now. Can I switch over to the Prestone 50/50 premix antifreeze?

    It's Yellow in color so will this be ok for my Aluminium Engine block?

    Thanks for any info...


  2. #2
    HoopsRXT's Avatar
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    If it is prestone(or other major brand) it will be ok for the engine.

    On the front of the bottle is probably says you can add it to any vehicle/coolant. antifreeze is now being make to be compatible with traditional green antifreeze and the newer pink antifreeze/ GM's Dexcool. This is the reason for the yellow color.

    I like 50/50 premix. It is mixed at the factor so you know its mix correctly and not just an estimate. It also saves a step.

  3. #3
    AKA: Larry lafjax's Avatar
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    Quote Originally Posted by HoopsRXT View Post
    If it is prestone(or other major brand) it will be ok for the engine.

    On the front of the bottle is probably says you can add it to any vehicle/coolant. antifreeze is now being make to be compatible with traditional green antifreeze and the newer pink antifreeze/ GM's Dexcool. This is the reason for the yellow color.

    I like 50/50 premix. It is mixed at the factor so you know its mix correctly and not just an estimate. It also saves a step.
    Prestone, 100%

  4. #4
    Resident Jicky Jack Jeff C's Avatar
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    Quote Originally Posted by lafjax View Post
    Prestone, 100%

    You never use 100%, use a 50/50 mix of whatever.......

  5. #5
    AKA: Larry lafjax's Avatar
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    Quote Originally Posted by Jeff C View Post
    You never use 100%, use a 50/50 mix of whatever.......
    Use 100% and the water in the system dilutes it to 50/50....
    Oh, you are talking about the coolent bottle....yep, 50/50 gives the best mix.

  6. #6
    Resident Jicky Jack Jeff C's Avatar
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    Quote Originally Posted by lafjax View Post
    Use 100% and the water in the system dilutes it to 50/50....
    Oh, you are talking about the coolent bottle....yep, 50/50 gives the best mix.
    I dont get it, he is going to drain the whole system and start fresh. What "water in the system" are you talking about?

  7. #7
    AKA: Larry lafjax's Avatar
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    Quote Originally Posted by Jeff C View Post
    I dont get it, he is going to drain the whole system and start fresh. What "water in the system" are you talking about?
    I thought he was winterizing....pouring 100% in water box and intercooler will mix with the water in there making a good solution. I didn't understand he was just replacing his stock coolant.

  8. #8

    antifreeze

    how about -40 windshield washer fluid...less toxic

  9. #9
    how is windshield washer fluid -45

  10. #10
    Doo It Till It Hurts! holdnon72's Avatar
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    No good cause most window washer fluid contains ammonia

    You want to use the 50/50 Prestone cause it's safe for aluminum

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