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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 #327616 is a reply to message #327597] Sun, 31 December 2017 11:19 Go to previous messageGo to previous message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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Senior Member
UPDATE. I went over first to check the level of protection. -10 was the protection level. Plugging in the block heater that had been installed years ago wasn't going to protect the heater core, or rad. So I cleared away the foot of snow so I could drained the radiator. Filled the rad with just antifreeze before starting. Then ran the engine up to operating temps. Thanks for the post. It's probable a little over the 50/50 mix as to antifreeze. If it is. What affect will that have? I always run 50/50 mix in everything. So I just never knew what happened below the protection level. Love this site with it's members. Bob Dunahugh


________________________________
From: Bob Dunahugh
Sent: Saturday, December 30, 2017 10:55 AM
To: gmclist@list.gmcnet.org
Subject: Can antifreeze/water freeze solid, and do damage at -25 when tested to +5?


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
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