I have an 01 Seirra ecsb 5.3 no towing pac, and I dont have an owners manual. Can someone tell me the capacity of the colling system?? THANKS!! Also is anyone running Royal Purple's Purple Ice in their system?? THANKS AGAIN!!

 

Around 14 Qt's....

So there is 4 qt's in a gallon
so around 3.5 gallons.

 

Thanks, sorry I forgot to put that I have the 28in rad not the 32in. I dont think that makes much difference though.