inboard maintenance

[bull1134]

I just got a boat that has a mercruiser inboard and alpha one drive. Anyone know what fluids I should check/change, and how often. I can't really find any info on that, and am waiting on all the manuals to come in. Don't want to mess anything up in the meantime though. anyone?

[Montauk17]

What year and horsepower? Oil needs to be changed every 100 hours or so. Lower unit oil is just like a outboard,once or twice a year depending on how often you use it.
One of the biggest things to do is run it off the trailer once a month or more. Worse thing you can do is let it setup.