About 1000' from the dock today the oil system warning light
came on. Removing the cowl and inspecting the internal oil
reservoir shows it's full, but the warning remains.

Hopefully the problem is simply that the float switch in
this reservoir is bust, but I'm worried about running back
from the cabin in this condition.

I read that this engine is lubricated via its air compressor,
and that its injectors probably would not appreciate having
oil mixed 50:1 with its fuel as insurance.

So, does anyone know if the oil warning light is tied only
that float switch, or if the engine can have some other oil
related matter it's concerned about? If I knew it was just
the reservoir sensor, I could save myself a tow.