yes, it will eventually plug the radiator. That bottle is on the end of the crankcase vent tube and all diesel engine have more blow-by than a gas engine, which blows a small amount of oil out of the engine. just part of having a diesel. I added a length of hose and wrapped an old sock around the bottle and tie it off to the suspension under the front of the engine, change the sock with each oil change.....mopar1973man has a different solution that works well. just do something to get it away from the rad before it plugs. also, the bottle in the stock location is to be drained and cleaned with each oil change. It's not easy to get to so, nobody removes and drains it. A double barb fitting, 2 hose clamps, about 2 ft of hose and some cable ties is all you need to move it....