just drained my outboards lower units and came up with two different colors of oil. my 5.5 (johnson)oil was jet black. my 40 hp rude's oil was an army green color. is this a sign of internal seal damage causing water to enter the oil? may be silly but i'm new to boating and this is troubling me. I thought it may be different brands of oil, but after close examination, i noticed what looks like grey spots. any help would be great. Kiya is actually my dogs name.
