First new motor in over 20 years so I hope you guys can help me out. I just got around to doing the forced engine oil feeding step for my new Tohatsu TLDI 40 as called for in the manual. While it was idling and later after sitting in the garage some dark oil dripped out of the lower unit. Is this normal? Is this just the unused oil from the richer mixture? Also, is there any min or max fill lines for the oil reservoir? I dont see any. Thanks.