How often you change your oil.

[44k1500fom]

Lower unit oil what do you use. And how often do you change it.

[GBhoss]

Once a year. Mercury HP

[johnsobo]

Once a year, usually in Oct. I use Merc or Quicksilver.

[tav]

Every spring or fall

[fishin couillon]

Once a yr. and whatever the Merc shop uses.......

[billius]

Once a year. Usually in late fall. Mercury lower unit gear lube, that's what Sherm uses. He does the winterizing for me.

[TMG]

Once a year. I have no idea what they use.

[06 SB]

Once a year. Mercury HP

[db220]

Every Spring and whatever the shop is putting in it.

[TroyBoy30]

Every winter. Whatever my mechanic uses

[like2fish2]

Once a year at dealership where motor was purchased. I'm sure they use Mercury products.

[rchavis]

I do mind own . Most time's 2 times a year . I use Mercury or Quicksilver High Performance gear lube ....think it 90 w .

[Rip Bass]

Twice a year for me with Merc hi-performance lube. I fish about twice a week usually.

[rudapa]

Once a year at the end of the season (Jan/Feb)

[crawdadking]

Ouicksilver HP every fall when fishing season's over

[ifishinxs]

I do my own Every September along with the seasonal filters and spark plugs. Yamalube!

[44k1500fom]

Y’all let them sit. I do min 5 or more times a year. I got along run I make and do it every time befor that run is made. I’m coming off race motors we’re we change oil every weekend.

[rangerguyz21]

Once in the fall , I use amsoil

[crank68]

Sportmasters don’t vent well soooo I change my 3 times a year with Merc HP...

[J Risco]

I use my boat a lot and gear oil isn't too expensive so I do it 3 times a year usually.