New Owner-Want to confirm winterization aspects

[23ft of awesome]

Hi guys, just acquired a 2011 TE 230, in fantastic shape, with a PCM ZR409. Wanted to touch base here and confirm I have done everything needed for winter storage, please see what I did below:
-Got boat to operating temperature via water
-Disconnected the main cooling intake, behind the sea strainer (emptied sea strainer)
-Pumped 6 gallons of RV antifreeze through the motor, as the motor was running

Then went through the motor and pulled the following drain plugs and left out in a plastic bag:
-Two plugs on the stbd and two plugs on the port exhaust manifolds, 4 Plugs total
-Pulled drain plug on the transmission, 1 Plug
-RV antifreeze drained out on all of the drain plugs
-I left all hoses attached, with RV antifreeze in them. (Should I pull those off and leave loose in boat?)

I have owned other inboards as well, couple of things I noticed on this boat that were different:
-Heater core and feeds are on the closed loop system, they have coolant (not raw water)
-Heat exchanger, when I removed the raw water drain, coolant came out-this was before I started the pumping of RV antifreeze
-The dripless system for the prop shaft, it feeds directly off the heat exchanger

Flushed the bilge/sump area with water, took out ballast bags, wiped everything down and put cover on.

Am I missing anything here?

Thank you in advance

[NautiqueJeff]

You did your steps backwards.

You shoud drain the water first, and then add the antifreeze. This is because marine antifreeze is not meant to be diluted at all. If it is, it loses its ability to not freeze quickly.

Since you drained everything though, you should be OK.

Please see this thread for the oficial instructions for winterization.

Basic Winterization Steps for 2002 - 2012 Nautiques

[jmo]

Only suggestion I would make for next year is warm it up, drain all of the raw water out, then back fill with AF and leave it in the system. The most important aspect is getting the raw water out. Some people just suck AF out of a bucket until they see it coming the other side, I prefer to be 100% sure and drain the water first. Also - change the oil while it’s still warm.

[23ft of awesome]

You did your steps backwards.

You shoud drain the water first, and then add the antifreeze. This is because marine antifreeze is not meant to be diluted at all. If it is, it loses its ability to not freeze quickly.

Since you drained everything though, you should be OK.

Please see this thread for the oficial instructions for winterization.

Basic Winterization Steps for 2002 - 2012 Nautiques

-I drained the water out of all hoses, then ran the antifreeze. I left that out (my bad)

Sounds like I got it all right.

Will be changing oil soon, just need to get through these cold months coming up

Thank you guys!

[NautiqueJeff]

The drain plugs should have been pulled first, not just the hoses.

Not a huge deal, but next time, drain everything first, put the plugs back, and then add the antifreeze.

[23ft of awesome]

Quote removed by Admin for not following the Guidelines for Quoting Previous Posts in a Thread.

Perfect!

Thank you!

[Neptune442]

Winterization steps, engine oil types, tow vehicle capabilities... some of my favorite polarizing topics

[GMLIII]

Neptune442 don't forget to add what kind of cleaner do you use on your boat in addition to lead acid vs AGM battery type. LOL