My 79 kohler 14 hp is burning oil at what I think is an alarming rate. Dipstick showed full and I mowed, about an hour of run time. Checked after and it was just under 3/4. After next mow, it was 1/4. I just filled and am ready to mow. I think this warrants some attention and likely rebuild or rings???. Fairly certain this is a standard and never been bored.