Gear case lube

[dark_star]

How often do you change your lower unit lube ?
I have been told once a year.
(F60 4stroke)

[DennisG01]

How often do you change your lower unit lube ?
I have been told once a year.
(F60 4stroke)

Depending on how much you use it, at least that often. Cheap insurance, plus it gives you an opportunity to check the oil condition.

[99yam40]

Yep, most want to know there is no water in the lower unit when it is put away for awhile when off season shows up.

If you live in a place that you use the motor all year, it is still a good idea to check or change every year.
Need to know if it is getting contaminated somewhere down the line before the lower unit is trashed

[dark_star]

I guess as long as the lube is clear and not milky when you pull
the bottom screw you're all good.
I still change annually.

[Reel Kahuna]

I use my boat year round so I change oil and gear fluid every 100 hrs.

[pstephens46]

About 10 bucks for oil. Twice a year to check for water.