Coolant flush question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Bennieficial · 08-27-2021, 11:11 AM

I'm in the process of doing a coolant flush on my 2011 SS. I've drained and refilled with distilled water about 5 times. Now it's draining out pretty clear.

I know that there's still some stuff in the system, as our cars hold 3 quarts, but I'm not able to put in the full 3 quarts. So, my question is if I'm trying to achieve a true 50/50 mix, about how much percentage of coolant should I really be mixing with distilled water? Should I over compensate with a little more coolant than water (since it's draining pretty clear)? Or would I be safe just mixing 50-50 still?

ChibiBlackSheep · 08-27-2021, 11:27 AM

You are safe just mixing 50-50 and running it until it's full. I doubt you deal with -10° weather where a 60/40 water/coolant mix would be. Boiling points are negligible between these ratios.

Rmkuper · 08-27-2021, 12:22 PM

Yeah I wouldn't overthink it to much. Just be sure to burp it afterwards and check the temp regularly afterwards...

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Bennieficial · 09-01-2021, 02:03 AM

Thanks! Overthinking is exactly what I was doing lol

08-27-2021, 11:11 AM	#1
Bennieficial Drives: 2011 Synergy Green Camaro SS Join Date: Jun 2011 Location: Raleigh Posts: 55	Coolant flush question I'm in the process of doing a coolant flush on my 2011 SS. I've drained and refilled with distilled water about 5 times. Now it's draining out pretty clear. I know that there's still some stuff in the system, as our cars hold 3 quarts, but I'm not able to put in the full 3 quarts. So, my question is if I'm trying to achieve a true 50/50 mix, about how much percentage of coolant should I really be mixing with distilled water? Should I over compensate with a little more coolant than water (since it's draining pretty clear)? Or would I be safe just mixing 50-50 still?

08-27-2021, 11:27 AM	#2
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,093	You are safe just mixing 50-50 and running it until it's full. I doubt you deal with -10° weather where a 60/40 water/coolant mix would be. Boiling points are negligible between these ratios. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

08-27-2021, 12:22 PM	#3
Rmkuper Drives: 2010 Camaro SS Join Date: Oct 2020 Location: Newburgh Posts: 164	Yeah I wouldn't overthink it to much. Just be sure to burp it afterwards and check the temp regularly afterwards... Sent from my SM-F916U using Tapatalk

09-01-2021, 02:03 AM	#4
Bennieficial Drives: 2011 Synergy Green Camaro SS Join Date: Jun 2011 Location: Raleigh Posts: 55	Thanks! Overthinking is exactly what I was doing lol