egroups.com:

You've not been using AD aviation oil? That'll do the same thing if
you've been using straight mineral.

I use AD for the rest of the time, but auto oils have more cleaners
in
them.


OK, I still think you're wrong about oil pressure. Though I've had some
engines with gravity feed oilers, (which needed frequent overhaul, BTW) I
can't see a flim being sustained in a big end, for instance, without a
goodly pressure flowing constantly to it. IOW the oil would quickly squirt
out of the side of the bearing leaving it dry...




bertie