To use the 'pink stuff', you need to run both a hot and a cold short cycle through the washer with your pump on and using the winterize port to suck up the antifreeze. You must do both as that's the only way you'll get it through the mix valve (trust me, I found out the hard way!) Then dump some in the washer drum and spin it out. Just doing the spin thing won't get the antifreeze in the mix valve, so do the cycles AND the spin thing.
On the fridge, I screwed that up, too. Get a filter bypass plug for your model, as without it you can't do the compressed air or the antifreeze route dependably. Then do as directed above for air, or run pink stuff through until all water is purged from the bladder in the fridge. The tough part is the ice maker. It has to dump pink cubes once or you don't have antifreeze through the most delicate and expensive parts.
All in all, it is a PITA. I'm hoping to find storage soon where I can run 30AMP and keep heaters running if necessary.
Niel & Carol Powers
Winnie Era 70C