Pulled my 2000 Chris Craft sport deck out of storage today. VP 7.4 GI fired right up after a new battery. Pulled props and pulled plug to change gear oil. Yikes-- gear oil is black as tar. No metal on the plugs (top or bottom). Have very few hours on this oil (20 max). Have not noticed anything unusual when last run. Engine oil still looks as it did new. Was last changed by a VP dealer. What if anything should I do.
Help please
Mike
Help please
Mike