Water on the floor if it doesn't smell like coolant is probably a blocked A/C drain.
Is it the coolant that smells like oil? Could it be ATF? The transmission cooler is part of the radiator in a WJ. There is a radiator repair place on the Western side of Bathurst an the left about Halfway between the second & third set of lights on the way in.
I'm in Lithgow if you need any help. ph 0458557375