Wanted: Expansion Tank

[Nathan1305]

Surely if it's in the header tank it'll be in the whole cooling system..

I was thinking this. Surely the cores of the rad are gonna be hard to get the oil out of! Water jacket etc? Surely you want to just get some rad flush/dishwasher tablets to clean it all out.

Already Flushed the system and it was clean. The oil just sits on top the water level. I changed my oil/water exchanger so it should all be good once the expansion tank is changed