ok, here is my Lesco 52 inch hydro with a 23hp Kohler engine. I have never had any leaks or burning of oil...but when we finished the year I did a full service changing engine oil and filter...as I was out in the garage working on something else I moved the machine and noticed a small puddle of oil. so I noticed behind the muffler there is the throttle cable and choke cable behind that on the engine there is a seam and oil is slowly dripping from that seam. I am only hoping or guessing that because of the cold the metal is shriking a little and causing oil to leak out. I put some engine gasket sealer and it seems to slow the leak down but its still dripping any thoughts or suggestions?