Lower unit oil for high HP application

[dingbat]

I need to change my lower unit oil. Not sure what oil the shop used when the LU was torn down for repair this spring.

What's the best LU oil out there for a high HP application.

The motor is a 200 HP Ocean Pro

 

[Dhadley]

Re: Lower unit oil for high HP application

The standard LU oil from BRP is fine for that motor, the synthetic is better. We use the full synthetic Merc lube in race motors. Even running a V4 gearcase on a Mod-VP V6 we found almost no sign of wear.

 

[j442w30]

Re: Lower unit oil for high HP application

I use Quicksilver Hi-Performance Lower Unit gear lube but there are others like Royal Purple 75w-90 gear oil, Amsoil Synthetic Gear lube or Mobil 1 75w-90.