Originally Posted By: motorcity
I'm just a cautious, This Kohler I have gets hot. I am currentlry using Mobil 15w40 delvac, and by the time I am done cutting the lawn, it has a bit of valvetrain clatter. And I know that they are sensative about the oil that is used in them, for this noise.
Mine has had the clatter in it since it was new. It too gets hot. All air cooled engines do. Kohler engines have always been reliable and durable but they are not known for their quietness or smoothness.