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-   -   gear lube (https://www.offshoreonly.com/forums/drives-lower-units/250799-gear-lube.html)

JasonSmith 05-22-2011 09:42 PM

I can get a good look at a steak by sticking my head up the bull's a$$ too, but I typically take the butcher's word for it.

07DominatorSS 05-22-2011 09:45 PM


Originally Posted by endeavor1 (Post 3409839)
Wow, your pretty mouthy about all of this. :evilb: I can tell you that its lowered the temps in my bravos by a long shot but hey, what do I know. I just run around in a 13000lb bravo breaker. :kiss:

Heat is a bravo drives worst enemy IMO so by reducing it which is exactly what this oil has done for me, I have increased my drive longevity.

Different strokes for different folks bro. If you like your amsoil, run it. We used to run it in our trucking company for years and saw lower trans and drive temps. On the other side of that coin is NEO oil and its blend has been doing very well in bravo based boats, mine included.

No. Not mouthy at all. This thread was started by someone asking about running the 10w-40 motorcycle oil in a drive. And now somehow its gotten twisted to this NEO oil, which by no means am I saying is a bad product, but I would put the AMSOIL up against it any day, and would like more info on it. I just find it kinda funny that you can't find any good info on the product. Supposedly been around since the 80's, if I remember correctly, and no info? Not even a simple data sheet? I'm glad to hear its working great in your boat. There are a lot of really good products out on the market, but there are equally just as many ****ty ones!

07DominatorSS 05-22-2011 09:47 PM


Originally Posted by JasonSmith (Post 3409852)
I can get a good look at a steak by sticking my head up the bull's a$$ too, but I typically take the butcher's word for it.

Hey, at least you've provided good substance to this thread!:lolhit:

bert4332 05-22-2011 09:47 PM


Originally Posted by Rebel_Heart (Post 3407959)
Just broke a couple of lower teeth off. This is after 3 seasons of running 75/90 Royal Purple. Change oil at the end of every season but only put 20 hours/year. The other drive oil looked ok when we changed in the fall.

What have others found with Royal Purple?

Per Mr. Gadgets, Royal Purple with 5oz of Prolong Engine Treatment, I would like Mr. Gadget to chime in on the Neo, now I have a stock package but I have never had an issue and trust Mr. Gadget's experience.

Strip Poker 388 05-22-2011 11:26 PM


Originally Posted by 07DominatorSS (Post 3409851)
Nope. Not saying that at all, but AMSOIL's motorcycle oils are also GL-1 rated, and have been tested in FZG gear testing, ASTM D-5182. Just saying, some things are made differently than others, and can perform in different applications.

http://www.amsoil.com/storefront/mcf.aspx

still i dont think there motor oil is better than there gear oil http://www.amsoil.com/storefront/agm.aspx

Like they say,teague is prob running the lowest weight oil/lube as its less friction,now also I bet he's inspecting the gears as normal maintance between races,

07DominatorSS 05-23-2011 07:10 AM


Originally Posted by Strip Poker 388 (Post 3409932)
still i dont think there motor oil is better than there gear oil http://www.amsoil.com/storefront/agm.aspx

Like they say,teague is prob running the lowest weight oil/lube as its less friction,now also I bet he's inspecting the gears as normal maintance between races,

I agree and I agree. However, this was all about being able to spin 'em that much quicker. Sometimes you've got to give a little to get a little. Thats all. But yes. For absolute protection, the gear oil is the way to go, period!

articfriends 05-23-2011 02:21 PM


Originally Posted by bert4332 (Post 3409866)
Per Mr. Gadgets, Royal Purple with 5oz of Prolong Engine Treatment, I would like Mr. Gadget to chime in on the Neo, now I have a stock package but I have never had an issue and trust Mr. Gadget's experience.

My lower gears lasted 10-15 hours with royal purple , 20-30 hours with cryo and iso rem,40 to 60 hours with Amsoil with a little Lucas (with the gears treated), I would NEVER run Royal purple in anything truly high performance again after what I have seen and experienced, Smitty

articfriends 05-23-2011 02:29 PM


Originally Posted by articfriends (Post 3408735)
As far as the original question,running a synthetic motor oil, it is not EP rated that I know of and I do know that GPM tried some in his drive behind 1400 or 1500 hp and the gears lasted about 2 or 3 hours but the set-up work that was done to his drive at the time is questionable, Smitty

The synthetic I am referencing was a 70 wt Royal purple motor oil. Gpm called up Royal purple and spoke with someone supposedly in the know, they told him the GL rated oils (including their own) "held too much heat" in the gears and the motor oil would work much better, I think they forgot about shear strength/contact patch, less than 3 hours later his gears were destroyed. As far as Amsoil MCF, I have no idea or experience, I do know that some synthetics have the ability to over lap in their applications and ratings due to superior formulation. I have heard of guys running 50 wt Amsoil engine oil in semi truck transmissions, Smitty

JasonSmith 05-23-2011 02:32 PM

I have the NEO-Bravo Shop RPD in a 40 Outlaw with twin 575's. Tom just completed a 130+ mile poker run and decided to drop the oil to see what it looked like at the same time interval as he normally changes drive oil at.
He reported back to me today that there was zero hair on the magnets and the oil was still clear and smelled fresh. He said that normally the oil is ready to be changed and there is hair on the magnets.
I believe he normally used Merc Hi-Po or Amsoil. I've asked him for conformation on brand.

07DominatorSS 05-23-2011 03:14 PM


Originally Posted by articfriends (Post 3410538)
The synthetic I am referencing was a 70 wt Royal purple motor oil. Gpm called up Royal purple and spoke with someone supposedly in the know, they told him the GL rated oils (including their own) "held too much heat" in the gears and the motor oil would work much better, I think they forgot about shear strength/contact patch, less than 3 hours later his gears were destroyed. As far as Amsoil MCF, I have no idea or experience, I do know that some synthetics have the ability to over lap in their applications and ratings due to superior formulation. I have heard of guys running 50 wt Amsoil engine oil in semi truck transmissions, Smitty

Thats not a 50wt motor oil in the trans'. Its a 50wt transmission fluid.
http://www.amsoil.com/storefront/ctl.aspx


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