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-   Drives and Lower Units (https://www.offshoreonly.com/forums/drives-lower-units-217/)
-   -   Bravo 1 Gear Oil (https://www.offshoreonly.com/forums/drives-lower-units/373999-bravo-1-gear-oil.html)

26 Outlaw Bad Influence 11-19-2021 09:06 AM
One additional mod I did not mention is I upgraded to the 1 1/4 prop shaft. It’s good insurance.

Tractionless 11-19-2021 09:03 PM
Amsoil Marine Gear lube made for clunky shifts in my all OE B1 to the point where I could feel the shift cable kicking. Went back to Merc. High Performance Lube ($10 qt.) and smooth as butter again. Never comes out black after 20 hrs. in circa 1996 drives!

xlint89 11-20-2021 04:46 AM
Originally Posted by Griff (Post 4812800)
That really depends on what year it was...........

Merc used to put standard Bravo's behind 500HP's, 525SC's and 600SC's and they would live.
Then gear quality and overall quality control went down and Merc came out with the XZ and XR and X to live behind the same HP ratings that used be ok with regular Bravos.
That's interesting. I did see in a brochure the HP 500 did come paired with the Bravo I and that's why I did feel confident in purchasing the engine without having to swap outdrives. But I did see you are correct they switched to the X or XR shortly after.

My OD is from a 1998 model year. I wonder where that falls into?

Thanks for the good tips guys

xlint89 11-20-2021 05:00 AM
Originally Posted by thirdchildhood (Post 4812811)
The green high performance lube is now the everyday lube. This is the latest and greatest from Mercury and it even looks and smells like conventional gear lube: https://www.mercruiserparts.com/merc...e-gear-lube-sa
They list that lube for the Bravo XR. I'd be curious why the Bravo I is not listed?

xlint89 11-20-2021 05:01 AM
Originally Posted by 26 Outlaw Bad Influence (Post 4812823)
One additional mod I did not mention is I upgraded to the 1 1/4 prop shaft. It’s good insurance.
I'm assuming you had a conversion kit installed?

obnoxus 11-20-2021 07:47 AM
+1 Amzoil. real world proved a difference. 2006 42 Fountain with 525's

SB 11-20-2021 08:47 AM
Originally Posted by xlint89 (Post 4812882)
They list that lube for the Bravo XR. I'd be curious why the Bravo I is not listed?
Only because it’s from Mercury Racing. Therefore, parts look up only looks up / includes Mercury Racing parts.

Griff 11-20-2021 10:10 PM
I've known a few people who got delays when shifting into gear with Amsoil.

xlint89 11-21-2021 09:11 AM
Originally Posted by SB (Post 4812899)
Only because it’s from Mercury Racing. Therefore, parts look up only looks up / includes Mercury Racing parts.
That makes sense. Thanks


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