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  1. #1
    Join Date
    Apr 2014
    Location
    Owensboro, KY
    Posts
    187

    Default Raptor Winterization

    First time Raptor owner

    Is there any need to back fill with Antifreeze if you remove all 5 drain locations? Also do you reinstall or leave out for the winter?

    What does everyone do for their ballast system?

    I am in KY so we get low teens for maybe 1-2 weeks a year.

    Thanks!

  2. #2
    Join Date
    May 2018
    Posts
    4,097

    Default

    No need to backfill antifreeze if all plugs are pulled.

    Ballast system, just use pumps to pull as much as possible, pumps are self draining, ballast bags and tanks with a small amount of residual water are fine, plenty of room for expansion.

    I leave plugs out until spring, the raptors have a blue plastic plug holder rack.


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    2021 Supra SA 400
    2018 Supra SA 400 (SOLD)
    Michigan

  3. #3
    Join Date
    Apr 2014
    Location
    Owensboro, KY
    Posts
    187

    Default

    Thanks, I found the holder. What are you guys using to test your coolant for freeze protection? I haven't found anything for local for propylene Glycol?

  4. #4
    Join Date
    May 2018
    Posts
    4,097

    Default

    Quote Originally Posted by JHutch View Post
    Thanks, I found the holder. What are you guys using to test your coolant for freeze protection? I haven't found anything for local for propylene Glycol?
    Amazon has several for PG.


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    2021 Supra SA 400
    2018 Supra SA 400 (SOLD)
    Michigan

  5. #5

    Default

    So nobody is pouring RV antifreeze into the water cooling system at all? Just draining the plugs and leaving them go. I live in ND so it gets REALLY cold here.

  6. #6
    Join Date
    May 2018
    Posts
    4,097

    Default Raptor Winterization

    Quote Originally Posted by WildH View Post
    So nobody is pouring RV antifreeze into the water cooling system at all? Just draining the plugs and leaving them go. I live in ND so it gets REALLY cold here.
    I have drained and refilled with marine anti freeze. I just donít need to use antifreeze anymore. Draining is all I do. 2 boats 4 seasons with a raptor.

    1) not necessary
    2) not all marine antifreeze is good enough
    3) itís pouring $$$ down the drain

    Trust Indmar when they designed a self draining raw water cooling system. Nowhere in the manual does it suggest marine antifreeze.


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    Last edited by larry_arizona; 11-02-2021 at 04:37 PM.
    2021 Supra SA 400
    2018 Supra SA 400 (SOLD)
    Michigan

  7. #7
    Join Date
    Jan 2019
    Location
    Lake Tahoe - 6200 feet elevation
    Posts
    160

    Default

    I have a slightly older boat then yours... I get the motor up to temp, let it suck in the antifreeze and then open and drain all the plugs. It may be over kill but its great piece of mind and cheap insurance on freeze protection. It gets cold here, and I dont want to deal with an issue come summer.

  8. #8
    Join Date
    May 2018
    Posts
    4,097

    Default

    Quote Originally Posted by Branden967 View Post
    I have a slightly older boat then yours... I get the motor up to temp, let it suck in the antifreeze and then open and drain all the plugs. It may be over kill but its great piece of mind and cheap insurance on freeze protection. It gets cold here, and I dont want to deal with an issue come summer.
    Open loop cooling system is different than a raptor closed loop/raw water system.


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    2021 Supra SA 400
    2018 Supra SA 400 (SOLD)
    Michigan

  9. #9
    Join Date
    Dec 2015
    Location
    north texas
    Posts
    1,113

    Default

    Last year in Texas we had 6 or 7 days below freezing. Single digits. Only drained the raptor. Fired up and ran great all this year! If you have a raptor drain the plugs, forget about it, and go hunting


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    2017 Supra SA

  10. #10
    Join Date
    Apr 2014
    Location
    Owensboro, KY
    Posts
    187

    Default

    I just drained the plugs and impeller. Feels weird not using AF but also made winterizing a 10 minute job!

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