I have a 2004 predator , I went to do oil change on it , I unscrewed the drain bolt and oil came out , I switched the filter put it all back together , then went to poor the new ps4 oil in and it only stayed in the reservoir? No oil went to the bottom of the case ? 1 quart filled the reservoir up and it just stayed in there didn’t drain into case , has this happens to anyone? Maybe an easy fix or I’m missing something? Thanks