2013 ISX 15 rapid sudden coolant consumption

[Nerv]

Sorry for the delayed update.. engine was finished, pre lubed, coolant filled with airvac, started, then immediately hooked up to loaded super-b trailers and took for a break in as per manual, lots of power, temps perfect, only difference i noticed was the cast iron oil pump has less pressure but i was expecting that reading the other comments about it. Changed oil just now at 1500miles, cut open oil filter, nothing of concern. Thanks for all the info on this website, very happy how it turned out, followed all the steps definitely am happy i learned a lot