Well, it is a new radiator fitted last June 25th 2013. Always seemed to have a problem with pressure, in that there appears very little pressure in the expansion tank. Fluid down intercooler feels like 'gritty' water, no smell.
Temp remains constant, fans working etc. No signs of overheating. There is though a very strong smell of hot rubber after a journey.
Radiator is dry, likewise the air condenser. Along the top of the intercooler is a layer of green mildew. The cooler has a layer about 2 inches or so of wet along it's front from left to right etc. Can also see some drips on the lower air vents in the bumper. Again this is water substance.
I am not losing water from the expansion tank but there is little to no pressure in the tank and can take the cap off straight away after a run.
Dark now and working for local supermarket this weekend driving articulated lorries so will not be able to get a good look at it again until Monday.
I too thought that the Patriot was an air to air cooler but this water has to be coming from somewhere. Also fuel consumption has increased this last few months and still dropping. June had major service etc so all oils and filters changed. Though I have heard recently of diesel filters blocking due to this latest additive fuel companies are using.