[Marc Bixen]

It’s pretty simple, the longer the car sits between start ups, the more oil drains back to the motor. My 156,000 mile 964 RS America is dry as a bone if I start it every week or two, If it sits longer it leaks as the oil level builds in the case.
As for the negative comments to the Rothsport , or Willhoit, valves, NO ONE, has reported ANY oil starvation issues with this product. As far as we know a ZERO failure rate. Use with confidence!