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Anyone in similar situation, check your alternator brushes and slip rings if possible, and don't be surprized if you get an alternator error soon after such an event. Apparently if oil gets to the area where alternator brushes and slip rings are (bottom of the alternator axle), it turns the already existing copper and carbon debris particles into a paste. This gets in between the brush and slip rings and either because of being abrasive or increasing resistance and causing arcs or some other similar cause not sure, wears the slip ring and brushes at highly increased rate.
After oil contamination, taking out the alternator opening up the brush, slip ring area and cleaning all the debris and oil as early as possible can prevent this before it is too late.
Don't ask me how I know..
I had seen several times in Bentley manual warnings about covering and protecting the alternator against any spills of fluids while working around it. Now I know why.
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