isx cm871 coolant pressurized

[Unilevers]

just a fair warning for guys running around with the caps loose. obviously you gotta do what you can to get it moving BUT

Running a 0 pressure system on conventional coolant, and LL coolant can cause localized hotspots on the liners and cause severe damage. the truck needs that pressure to maintain a high boiling point and keep the liners from flashing off coolant and causing overheat on the liners. just a heads up.