V8 Dex-cool

f.d · 12-30-2022, 02:59 PM

What is the correct number for 2018 SS ( Dex-cool )
Is it :
GM 12346290
Or
GM 12378390

Why every web shop say something different about Compatibility..

What you think. Please help

arpad_m · 12-30-2022, 10:20 PM

Looks like 12346290 is the undiluted coolant and 12378390 is a 50/50 premix (50% coolant, 50% distilled water). Both compatible, but if you buy the first one, you are advised to mix it down to 50/50 yourself.

2SS Capt · 12-31-2022, 12:23 AM

Quote:

Originally Posted by arpad_m

Looks like 12346290 is the undiluted coolant and 12378390 is a 50/50 premix (50% coolant, 50% distilled water). Both compatible, but if you buy the first one, you are advised to mix it down to 50/50 yourself.

I bought the 50/50 mix because I only needed about 12-16 oz to top off my coolant, if you buy the concentrated and dilute it yourself, use only distilled water to dilute it...

f.d · 12-31-2022, 06:46 AM

The problem is in (summit racing) they say that #12346290 is also 50/50 , something confusing.
And only the # 12346290 is compatible with Camaro & Corvette.

https://www.summitracing.com/parts/ado-10-101

The other Dex-Cool # 12378390 is for Chevy Volt.
- And if I put my Camaro VIN or any of my friends Camaro’s VIN (2017-2018 Camaros) the web shop gives me only (12346290) and it’s not clear on the bottle if it’s 50/50 or concentrate.

Some people say it’s 50/50 and others say concentrate.

Just write # 12378390 in google and see how many Chevy Volt videos.

MakCamaro · 12-31-2022, 09:45 AM

As long as it's Dex-Cool it's good for your car. In fact you can buy similar products on eBay or Amazon - all you need to know is that it's Dex-Cool.

In regards to the above products, 12378390 is marked clearly as a 50/50 premix, so that's exactly what it is, whereas 12346290 is undiluted. So either product would be good for your car, just make sure that you prepare a 50/50 solution if you go with the 12346290 one.

Hope this helps.

f.d · 01-03-2023, 06:35 PM

Thanks a lot for the answers, helps a lot.

In fact I ordered #12346290 and I will add distilled water 50water/50coolant.
I will see on the back of the gallon packaging if its clear (Concentrate), just to be sure.

f.d · 01-04-2023, 07:00 AM

I received the coolant ( Dex-Cool #12346290 = AC-Delco 10-101 ) It is concentrate and it should mix with distilled water 50/50.
On the back side of the gallon wrote on it (Concentrate).

Thanks everyone

12-30-2022, 10:20 PM	#2
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,605 View My Garage	Looks like 12346290 is the undiluted coolant and 12378390 is a 50/50 premix (50% coolant, 50% distilled water). Both compatible, but if you buy the first one, you are advised to mix it down to 50/50 yourself. __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

12-31-2022, 09:45 AM	#5
MakCamaro Makis Drives: 2020 Red Hot ZL1 A10 Join Date: Apr 2019 Location: London - UK Posts: 806	As long as it's Dex-Cool it's good for your car. In fact you can buy similar products on eBay or Amazon - all you need to know is that it's Dex-Cool. In regards to the above products, 12378390 is marked clearly as a 50/50 premix, so that's exactly what it is, whereas 12346290 is undiluted. So either product would be good for your car, just make sure that you prepare a 50/50 solution if you go with the 12346290 one. Hope this helps. __________________ Red Hot 2020 Camaro ZL1 A10 <-- Enjoying the hell out of it Mosaic black 2018 Camaro 2SS A8 (sold)

12-30-2022, 02:59 PM	#1
f.d Drives: camaro Join Date: Feb 2014 Location: Every day some were Posts: 116	V8 Dex-cool What is the correct number for 2018 SS ( Dex-cool ) Is it : GM 12346290 Or GM 12378390 Why every web shop say something different about Compatibility.. What you think. Please help

12-31-2022, 06:46 AM	#4
f.d Drives: camaro Join Date: Feb 2014 Location: Every day some were Posts: 116	The problem is in (summit racing) they say that #12346290 is also 50/50 , something confusing. And only the # 12346290 is compatible with Camaro & Corvette. https://www.summitracing.com/parts/ado-10-101 The other Dex-Cool # 12378390 is for Chevy Volt. - And if I put my Camaro VIN or any of my friends Camaro’s VIN (2017-2018 Camaros) the web shop gives me only (12346290) and it’s not clear on the bottle if it’s 50/50 or concentrate. Some people say it’s 50/50 and others say concentrate. Just write # 12378390 in google and see how many Chevy Volt videos.

01-03-2023, 06:35 PM	#6
f.d Drives: camaro Join Date: Feb 2014 Location: Every day some were Posts: 116	Thanks a lot for the answers, helps a lot. In fact I ordered #12346290 and I will add distilled water 50water/50coolant. I will see on the back of the gallon packaging if its clear (Concentrate), just to be sure.

01-04-2023, 07:00 AM	#7
f.d Drives: camaro Join Date: Feb 2014 Location: Every day some were Posts: 116	I received the coolant ( Dex-Cool #12346290 = AC-Delco 10-101 ) It is concentrate and it should mix with distilled water 50/50. On the back side of the gallon wrote on it (Concentrate). Thanks everyone

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