I just purchased a Terramite backhoe/loader with a Kohler CH20-64519 engine. This is a replacement engine. All data with backhoe shows the engine should use 2 quarts of oil. The dip stick shows way above the full mark. I drain out 1 quart and the dip stick reads full. Is it possible that the engine can run ok with only 1 quart of oil? Also when I started engine with 2 quarts, oil dumped into carb through the breather tube. Hope somebody knows an answer. Thanks. rowhoe.