Well, the oil is cooled by the small Laminova through which the water flows. The water radiator is standard Rotax issue. I will test run my engine tomorrow and do not expect any problems. Another 701 friend Juha Vestman (also with an 912ULS) having this cooling setup reports he has no cooling problems, not even during water taxi on floats. An added benefit he says is that during cold winter days the oil and water temperatures will reach the minimum limits faster and also simultaneously. Rgrds, Max

John, I have now static tested the setup with the water flowing from the engine to the water radiator through the small size Laminova heat exchanger and the oil being sucked from the reservoir through the Laminova by the oil-pump. No problems experienced and the oil and water temperatures tracked better than ever. Great for wintertime, but the real acid test will be a warm summer day with a long taxi before takeoff from a lake with high shoreline trees. Will post a pic on my page of the setup during the test run. Rgrds Max