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Home » Public Forums » GMCnet » [GMCnet] Can antifreeze/water freeze solid, and do damage at -25 when tested to +5?
Re: [GMCnet] Can antifreeze/water freeze solid, and do damage at -25 when tested to +5? [message #327605 is a reply to message #327597] Sat, 30 December 2017 15:40 Go to previous messageGo to previous message
Matt Colie is currently offline  Matt Colie   United States
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
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BobDunahugh wrote on Sat, 30 December 2017 11:55
I've never thought about this before. The neighbor that lives across the street is serving in the Middle East now. I got an e-mail from him about his truck that's sitting outside. He thinks the antifreeze is at +5. Our highs for this next week are to be between -2 to -10. Nights to be between -12 to -25. Not relevant to this. The wind chills are expected to be between -20 to -35 for the day. -20 to possible -40 at night. My GMC is inside at +70. I'm going to go play with the GMC for the next week. Stay warm my friends. Bob Dunahugh

Bob,

Memories from cold testing for AM General:
If his coolant is only good to +5, drain it now. It can take out the radiator core in a heart beat.
If it is good for -10, it will probably do no harm but that is just not a given. Even at that mix, it will turn to non-freezing slush that will take out the pump or the belt if it is started.

Do your neighbor a favor right now. If you can't find a drain cork (many newer vehicles are not so equipped), cut the lower hose.
This is actually a recommend emergency procedure. A hose is easier to replace than a radiator and an engine.

He is lucky to have a neighbor that cares.

It is 14° here right now and I just came in from clearing the back lot for our party tomorrow. I am still trying to warm up.

Matt


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
 
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