we finally got hold of the local Subaru Expert mechanic, who unfortunately cannot do warranty work. He is adamant about NOT trying Sea Foam solution on a new car. He thinks it might be a carburetor problem.
Sadly our local dealer is well known for their terrible Service Dept. So we may have to go elsewhere.
And I just got a report that they have no record of the hard starting being a problem, so they did not want to record the problem. ????? My wife insisted they log it. We need more people doing that or Subaru will never address this problem that seems to have been a Subie problem of many years.