| Re: [GMCnet] Can antifreeze/water freeze solid, and do damage at -25 when tested to +5? [message #327694 is a reply to message #327637] |
Tue, 02 January 2018 22:54   |
Dave Stragand
Messages: 307
Registered: October 2017
Karma:
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Senior Member |
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Thanks to all for the reminder to check the antifreeze protection!
Our coach had been fairly well drained when we first bought it, and we had filled it at the time with a couple of gallons of distilled water and a couple of gallons of pure Prestone, but I remembered checking with the tester and seeing it wasn't optimal. Went back today to check and it tested to +10 degrees protection.
Now I'm not sure how accurate that tester is, as it had dipped to around 3 last night, and it was 9 when I tested today and it was still liquid with no signs of ice crystals.
It's supposed to warm up to a balmy 20 degrees tomorrow, so I plan to siphon a gallon of mix out of the radiator and replace with a gallon of pure Prestone, then run the engine for 10 minutes or so to stir it all up.
It's supposed to be -10 on Saturday, so better safe than sorry!
-Dave
1978 Transmode (403)
ICEburgh, PA
(formerly known as Pittsburgh)
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1978 Transmode (403)
Pittsburgh, PA
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