kevin wrote:

Is anyone running Amsoil 10-40 full synthetic. I have heard some pilots
run this in light singles. I realize it is not certified , so they must
think full synthetic is better than dino oil .

I don't know much about oil, synthetic or otherwise, but just for my
information wouldn't running uncertified oil in an airplane be
considered a fairly serious violation by the FAA? I'm not trying to
argue about it, since I don't care one way or the other about what
people put in their planes, but I am curious. If you had an
engine-related accident and were running uncertified oil, would the FAA
hang you out to dry? Would your insurance company use it as an excuse
not to pay up?

Tim