Alpha one outdrive oil compatibility

Guymontag

Seaman Apprentice
Joined
Oct 10, 2018
Messages
48
I've got a mercruiser alphaa lx 3.0 with a alpha one outdrive. I got it last year I don't know what type of oil is currently in the outdrive. I'm looking to change the oil and noticed ; Mercury High Performance Gear Lube plus says not to mix. I'm gonna drain what ever is In there out. The residual left over isn't a problem I assume not knowing what it is? I was gonna change the old and add; [h=1]Mercury 92-858064K01 Marine SAE 90 High Performance Gear Lube.[/h] seems there's a ton of conflicting info on what to use and I don't have a manual.
I also see ; [h=1]Quicksilver 858064Q01 High Performance SAE 90 Gear Lube .[/h] Not sure which to use?
 

GA_Boater

Moderator
Staff member
Joined
May 24, 2011
Messages
44,981
Use the High Performance Lube. Mercury and Quicksilver are the same thing in different bottles. It's like Dodge and Mopar or Ford and Motorcraft.
 
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