Coolant Question
Thread Starter
Instructor
Joined: Jun 2017
Posts: 129
Likes: 9
From: GA
Coolant Question
Today I got the "low coolant level" notification. I went out and just bought regular Prestone extended life coolant and figured I'd research before dumping it in. If I've read correctly there is a certain type that I am supposed to use? Ive seen both positive and negative reviews about dexcool but I'm not sure what is best to use. Also I'm not sure what coolant is already in the car bc I bought it about a month ago and Ive read that mixing coolant is not a good idea. Any help or advice is greatly appreciated.
Last edited by Chase0808; Sep 1, 2017 at 05:34 PM.
Pro
Joined: Nov 2016
Posts: 647
Likes: 103
From: Aurora IL
I'm also a new 2007 owner, dexcool is what it takes should look orangeish when you look at it. I think the bad rap on dexcool was when it first came out in the mid 80's ??? Folks would mix it with the green stuff and end up with brown geewy mix and overheating issues. I also think the dexcool today is better than what was used 20 years ago. It should be changed out every 5 years or so.
Racer
Joined: May 2017
Posts: 478
Likes: 105
From: Diamond Bar Ca.
Today I got the "low coolant level" notification. I went out and just bought regular Prestone extended life coolant and figured I'd research before dumping it in. If I've read correctly there is a certain type that I am supposed to use? Ive seen both positive and negative reviews about dexcool but I'm not sure what is best to use. Also I'm not sure what coolant is already in the car bc I bought it about a month ago and Ive read that mixing coolant is not a good idea. Any help or advice is greatly appreciated.
Here is the link to mine. 2010 https://my.gm.com/content/dam/gmowne...tte_owners.pdf
Page 7-9.
Usage Fluid/Lubricant
Engine Coolant
50/50 mixture of clean, drinkable
water and use only DEX-COOL®
Coolant. See Engine Coolant on
page 6-36.
ZR1 Only:
Intercooler
System
50/50 mixture of clean, drinkable
water and use only DEX-COOL®
Coolant. See Engine Coolant on
page 6-36.
Although, I would try to avoid water from a municipal source as it has many minerals that could interact with the coolant in a negative way and since the cost of distilled water is insignificant, that is what I use.
Last edited by danzio56; Sep 1, 2017 at 07:12 PM.
Thread Starter
Instructor
Joined: Jun 2017
Posts: 129
Likes: 9
From: GA
The answer is also in the owners manual. If you don't have one you can download one online for free. And you really should have one.
Here is the link to mine. 2010 https://my.gm.com/content/dam/gmowne...tte_owners.pdf
Page 7-9.
Usage Fluid/Lubricant
Engine Coolant
50/50 mixture of clean, drinkable
water and use only DEX-COOL®
Coolant. See Engine Coolant on
page 6-36.
ZR1 Only:
Intercooler
System
50/50 mixture of clean, drinkable
water and use only DEX-COOL®
Coolant. See Engine Coolant on
page 6-36.
Although, I would never use water from a municipal source as it has many minerals that could interact with the coolant in a negative way and since the cost of distilled water is insignificant, that is what I use.
Here is the link to mine. 2010 https://my.gm.com/content/dam/gmowne...tte_owners.pdf
Page 7-9.
Usage Fluid/Lubricant
Engine Coolant
50/50 mixture of clean, drinkable
water and use only DEX-COOL®
Coolant. See Engine Coolant on
page 6-36.
ZR1 Only:
Intercooler
System
50/50 mixture of clean, drinkable
water and use only DEX-COOL®
Coolant. See Engine Coolant on
page 6-36.
Although, I would never use water from a municipal source as it has many minerals that could interact with the coolant in a negative way and since the cost of distilled water is insignificant, that is what I use.
I actually just looked the up a couple of hours ago and saw that it says dex cool. Going to pick some up now
Le Mans Master
Joined: Feb 2014
Posts: 5,463
Likes: 1,138
From: Chino CA
After you top it off, make sure you find the leak, because there is a leak. Check around your water pump and hoses for signs of coolant. If you are not seeing spots on the ground yet, it is probably just starting, but there is a future problem that you will want to track down now.
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C7 of the Year - Unmodified Finalist 2021
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Joined: Apr 2007
Posts: 16,023
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From: Toronto, Canada
C7 of the Year - Unmodified Finalist 2021
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Racers have known this for decades.
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Racers also expect to replace and rebuild engines frequently. Try doing that on the road for a DD.
I know juan and I will say, go by what the Chevrolet/GM engineers recommend, not the race track "engineers."
I know juan and I will say, go by what the Chevrolet/GM engineers recommend, not the race track "engineers."
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Laugh all you want; go do that in YOUR new car that does not recommend it and see how fast they'll replace your burned engine. You want to experiment, go ahead. Don't be so cavalier with someone else's money, or car. OP may still have a warranty in place.
Team Owner
Joined: Sep 2014
Posts: 26,430
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Gawd, **** guys and Corvettes!