Well It started about a month after I switched over to elc coolant. I did the whole procedure to switch over, Put in a new thermostat and billet housing (both from dieselsite) and all was great then about a month later Im getting a leak at the thermostat where the rad hose goes on so I double clamped it then all was good for about 3 months. Then It started pushing a very little coolant out the degas bottle. Not all the time just mainly when Id either get on it good a couple of times or it seems whenever I use the block heater at night for some reason. Put a new cap on the degas bottle (thought maybie it was weak and not holding pressure where it should) and was good for about 2 more weeks and started again so I pulled the thermostat and checked it in water with a thermometer and it didnt start opening till 218 degrees so I put a new international thermostat in it (and before installing it I checked it with the heating water test on the stove and started opening at about 192 degrees) then it was great again till today and now its coming out the degas bottle a bit again. What gives? Could it be the thermostat took a crap again? It has me stumped. No smell of exhaust in the coolant and no mixing of fluids anywhere. I even put a new clutch fan on it last time as I thought it could have been bad since it was original. Any ideas?