Simple way, get an antifreeze tester and check to see how much is in it. Tells you how cold it will protect the engine etc
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I had seen those years ago but had no idea if they worked with modern coolant. On my "to buy" list.Yes there is a test device for ethylene glycol (HOAT is mainly ethylene glycol) with colored floats in it that gives % coolant / water based on density. It doesn't cost too much.
That's what I do as well.From my experience, you can't get it empty by just draining. So I usually flush it with water a few times and let it come up to operating temp each time and turn on the heat to ensure I'm flushing the whole system.
That is a very good idea. I've been just trying to make sure I added more coolant than water to make up for the water trapped in the system. I'm going to do it your way from here on out. :favorites13:Then since the system is 14 quarts total I believe, I put in 7 quarts of G05 and top off with water. That gives 50/50.
...and it had traces of some kind of sealant all around it other than the gasket. I didn't use any sealant on the new one, just the gasket, should I be ok?
I also tried flushing it to remove the sealant shavings by adding 2 gal of distilled water and getting it to operational temp., let it cool off and drained it. But I don't think I got everything out...
Somebody has been there before and wrongly used an RTV sealant, which could explain the leak. Yes you're ok now.
What I like to do after a new engine build, is drape a nylon stocking over the upper radiator neck, then install the upper hose like normal. After the first run around town, remove the upper radiator hose and the nylon. You'd be surprised to see what crud the nylons filter out.
Thats what I use to filter my used antifreeze when I do my semi-annual radiator swap
High end nylons :shrug:,,,,aren't they crotchless :gr_grin: