Since I've never use any oil analysis service, I have
a question. I've always understood that this was something you did
routinely, to notice when some extra wear starts. In other words, the
results are based on a baseline that you established when the engine was
working well. Since so many people do this with Lycomings, there's a
pretty good bank of data to compare to, even if your only sent in one
sample. Do the oil test folks have a solid idea what's "normal" for
a rotary engine? Will this test absolutely show if something is
wrong?