Lower unit oil

[alfredito]

I have a 50 hp Force outboard..How often should I change the lower unit oil?

 

[scotiany]

Re: Lower unit oil

I don't know myself if there is a hard and fast rule for every OB. Once a year seams to be the norm. If your lube drains with no evidence of water, you're probably OK. If not, it's time to start changing the seals. The first seal I'd change would be the prop shaft seal.