"Daniel L. Lieberman" wrote in message
...

The answer to questions such as this can be found in the POH from the
manufacturer who supposedly knows more than the average flight
instructor.

I just love posts like this one!!

A good flight instructor would know that the answer to this question is
not a general answer that works for all aircraft and would therefore not
deal with it on a newgroup forum or in person before checking it out for
engine manufacturer recommendations and POH remarks as the answer
relates to the SPECIFIC aircraft/engine combination involved with the
question.
Although your answer is correct, unless you are one of these "pilots" on
"piloting" who think CFI's are morons, I see no reason to assume that
the "average" flight instructor wouldn't be intelligent enough to do
this.
Dudley Henriques
International Fighter Pilots Fellowship
Flight Instructor/Aerobatics/Retired