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Old 06-06-2019, 05:26 PM   #1
Gunkk
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Check your coolant levels!

Public Service Announcement!



3 times in the last 3 days I've seen folks post pictures of engine bays with low main coolant tanks.


The primary coolant tank on our cars is the top tank. The surge tank is beneath it. The top tank should be completely full to the top all the time. It seems like a lot of folks either overlook it, never ReadTFM, or are assuming our cars are like all other cars they've ever owned and think it's a surge tank and 1/2 full is normal. Well folks, I'm here to tell you that half full is not normal.

For example, see this post for a perfect example of a "DON'T" along with the relevant owner's manual page showing both the correct setup as well step by step instructions for how to correct a low coolant condition:
https://www.camaro6.com/forums/showp...51&postcount=2


It's Summer. It's Hot. And if the top tank goes dry, your engine is in a world of hurt. Don't be That Guy.



With much and ...

Your Friendly Neighborhood Coolant Cop
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Old 06-06-2019, 05:35 PM   #2
Junkyardspecial
 
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Is there an appropriate off the shelf coolant that can be used? Mine is a little low.
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Old 06-06-2019, 06:03 PM   #3
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Well you know the post you linked into this thread..... they acknowledged your concern and said they know it should be full. Since that picture was just a staged picture for the build they were doing.....
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Old 06-06-2019, 06:07 PM   #4
Redline Motorsports
 
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Quote:
Originally Posted by Vigilante375 View Post
Well you know the post you linked into this thread..... they acknowledged your concern and said they know it should be full. Since that picture was just a staged picture for the build they were doing.....
This guy is really into his coolant...
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Old 06-06-2019, 06:40 PM   #5
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If people's cars are eating coolant, they have a problem. It's a sealed system and coolant should not disappear or be consumed (like oil may due to blow-by), if it is you may have a head-gasket issue or leak in the system.

Old cars can lose coolant due to head gasket, and other leaks. Modded cars can lose coolant due to head gasket, and other coolant system leaks created during the messy modifications process.

I'm surprised so many people are losing coolant, my guess is they have mods that involved disconnecting coolant lines that didnt fully seal up after, or are allowing air into system somehow.
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Old 06-06-2019, 07:51 PM   #6
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I almost feel like I’m watching an infomercial here. What are you trying to sell us? Lol seriously though, The line between full and low is what? Maybe a quart? The coolant system probably holds close too 12 quarts or more. I really doubt this is as catastrophic as your making it sound. But thanks for the concern.
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Old 06-06-2019, 08:14 PM   #7
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I don’t think Gunkk is doing a infomercial with this post. Just making people aware of a possible bad situation that may develop if the coolant level goes too low. If yours is fine then no worries but I keep a check on the oil and coolant levels in mine frequently! Thankfully mine is okay too.
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Old 06-06-2019, 08:54 PM   #8
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Just checked mine. Top tank was half empty and the bottom looked bone dry. Bought some Dex-cool from Walmart, created a 60/40 DIH20/coolant mix and refilled both.
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Old 06-06-2019, 09:40 PM   #9
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Quote:
Originally Posted by Redline Motorsports View Post
This guy is really into his coolant...
haha!
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Old 06-06-2019, 09:46 PM   #10
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Typical system will lose a little coolant over a year's time due to evaporation, etc. I have run mine harder than most here and have only had to add about 12oz. to the lower tank in 2 years.
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Old 06-06-2019, 10:37 PM   #11
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Thanks Gunk...Good info.
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Old 06-06-2019, 11:16 PM   #12
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You could top off with Coolant but if it's a small amount DI water is fine. I live in FL so it's no issue for me if needed to top off since it doesn't get to freezing here. Total system capacity for V8 is 12+ quarts so a small amount of top off water is fine.
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Old 06-07-2019, 10:10 AM   #13
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I took out like 2 quarts out of my system, the dang upper tank was full to the rim! From the factory!!! You'd think GM would get their S*&^ together by now.







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Old 06-07-2019, 01:14 PM   #14
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OP is correct. Top tank supposed to be full, lower is half full.
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