Coolant flush

Basic job done at last, that should have been tackled ages ago, but more fundamental issues got in the way!

Since I am hoping that the constant build up of oil in the water (not the other way around strangely) was down to other issues, I have at last drained all of the old coolant, flushed around with plain water and then refilled with 1/5 antifreeze. Should be enough, may add some more antifreeze maybe, but main thing is interested to see if the oil / emulsion build up continues or if it has stopped.

Then will perhaps re-fit thermostat.

Plugs out again, looking a touch rich perhaps, but only a little. Certainly OK looking, another good sign.