I have installed a Shearwater on my Evo+ in order to have an additional monitoring of the PO2 and it goes via a Fisher Cable. The oil is just a drop you put once in a while on the pins to make sure everything stays lubricated and corrosion free. From my understanding it is simply vegetable oil and not everybody bothers using it. I would prefer a Fisher over a molex anytime. On a different note: I am planning a trip to Dubai for work and was wondering which centre is CCR friendly besides the one in Fujairah from your profile it appears that you are based there.
