Oil Change Regularity

zatatime writes:

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.

I change it every 25 hours, both oil and filter. I read somewhere that
three months would be a good interval if you fly less than 25 hours
during that period. In my case, I seem to fly about 125 to 150 hours a
year, sometimes closer to 175, so I go through enough oil changes to
never exceed the three month rule.

Some might think I'm being overzealous, but factor in the oil change
cost into the total operating costs, and it's a pretty tiny amount,
particularly if you do your own changes.

-jav