Drive oil question
 

What viscosity is best in a Bravo 1? I have used Sierra Synthetic forever, and thought I might try Royal Purple since I use their Racing 51 Oil. I have looked on the Seirra jugs and there's no weight rating and there web-site was no help. R.P. has three weight ratings on there gear oil, just trying to decide which would be best, so I'm calling on the power of OSO!!:D
Thanks, Mitch

I'm pretty sure Joe and Wayne and the Sunsation factory use the AMSOIL Marine Gear Lube. That is what I use in my 32 MCOB SS

http://www.amsoil.com/StoreFront/agm.aspx

And read this too, you might change your mind on Royal Purple products.

http://www.amsoil.com/products/gearl...hitePaper.aspx

Mitch,
We've been using Royal Purple 75W-90 for years in our B1's...
...works great!
Carder

Rpyal Purple Max Gear 75-90
http://www.royalpurple.com/gear-oil.html

Thanks very much!!!!!!

Switched to Royal Purple when I went to Imco shorties last year, 75w-90. Change oil at the end of the season.

always used royal purple. no problems.

Thanks!!

Royal Purple is helping I'm sure to keep my drives going at my HP level. I use 85-140.

Cool...Thanks Big,, I mean Smitty:cool-smiley-027:

I used Mobile One in my Kaamas, with nary a problem.

I have a 1992 Bravo one. I have not been nice to it. It's never needed any work. It had a 454 mag driving it. For the last 4 years it has a 496 HO on it. I have never used anything but the Mercrusier green HP outdrive lube. I'd say 16 years is a pretty good statement as to the quality of the Mercrusier stuff.