2016 SPX 210

Discussion in 'Winterizing' started by dan Mindel, May 18, 2020.

  1. dan Mindel

    dan Mindel New Member

    21
    Mar 23, 2020
    Barrie, Ontario
    2016 Spx 21
    4.3 mercruiser sterndrive
    Do you have to put pink antifreeze to winterize or can i just drain the engine of water (Fresh Water)
     
  2. BillK2632

    BillK2632 Well-Known Member GOLD Sponsor

    Jun 25, 2009
    Lake Norman, NC
    1999 185 Bowrider,
    Mercruiser 4.3, Alpha I
    You can do either really. There are two schools on this:

    1 - air doesn't freeze, so just drain it
    2 - All the water might not drain out, plus the internal surfaces of the manifolds/engine water jackets can corrode and rust, so filling with antifreeze is an extra protection step. Use the pink stuff, but on the ethyl alcohol (alchohol based), use Propylene Glycol based.

    I am school 2, I drain my block and manifolds, then pour the antifreeze in, I think the antifreeze helps to protect from rust/corrosion and it just makes me feel better - never a fan of using the running engine to draw the antifreeze in, too easy to mess this up trying to time the opening of the thermostat etc.

    ** So this it it! It's May, no more winterizing discussion until September -- got it?
     
  3. dan Mindel

    dan Mindel New Member

    21
    Mar 23, 2020
    Barrie, Ontario
    2016 Spx 21
    4.3 mercruiser sterndrive
    Ya, was double checking, thanks!
     

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