Coolant Capacity in 2005 Sierra HD 6.0 V8

[AugustF15]

The title pretty much sums it up, I'd like to know how much premixed 50/50 should go in my engine. In gallons, preferably.

 

Thanks in advance!

[txab]

System is about 16-17 qts., iirc. So 2 gallons minimum, if you can get it all in there. I prefer full strength stuff and add until I get minimum 2 gallons in. The rest of the system is clean distilled water still inside. This is after an adequate flush procedure, of course

Edited July 25, 2022 by txab

[Black02Silverado]

It take 16.7 qts or just over 4 gallons.  You can find the information here.