Hi

I don't have pics after that....but I have opened a couple of times recently and yes...oil is very clear an nice....Anyway I use a Molsyn 150k oil mixed with castor (15% + 3%) with this engine....
The problem with the picture I showed of the cam is not that the oil is dark, but that there is not enough oil....it was almost "dry".

The oil that comes from the vent is also clear.
Since I lost my muffler during one flight, I haven't been able to fly again...I don't have much time neither because I'm currently writing my Thesis for my Engineering degree...
Maybe next month when I find a solution for my muffler and the work is done =)

Saludos,

Jorge