04’ CM870 pushing coolant out of overflow and upper radiator hose

[Redland1]

(10-01-2026 )marek4792 Wrote:  If it isn't from a bad EGR cooler, dropped liner, injector cup head, or air compressor.. Id say your oil cooler is toast based on that color and how your hoses look.. Rare cases could be gear oil for transmission if there's an exchanger either external or built into the radiator..

Oil does run around 230F. EGR is deleted and cooler was removed.Demandate was done by the 870 wizard on here from the far north.