I do mine in the Pitts about every 25 hours or six months. I'm probably
more rigorous about the 25 hours than the six months, but I never let it go
more than a year if I still havent reached the 25 hours. We didn't have a
very good summer so for that, and a few other reasons, I haven't flown much
in the last year. I haven't hit the 25 hours but if I exceed the 6 months,
I'll change it.

Now, as to why change it that often, I honestly can't remember the details.
but I remember reading in a couple of places, specfically in oil-related
documentation, that changing it that often was a good thing, so I just put
the times in my head and go with that.

Shawn
"zatatime" wrote in message
...
I fly my bird about 50 hours per year. I was taught by an old-timer
that 50 hours was fine for oil changes and that a year was an
acceptable calendar period.

In the other threads it seems many have a higher frequency than this.
Would people chime in with how often calendar and flight time they
change? For those who have what I'll call "short duration changes"
based on what's above, what are the things you worry about happening
if you go longer. Anyone who goes longer please also give your
philosophy.

Thanks,
z