Schaeffer gear oil in Bravo One drives
 

Has anyone used the Schaeffer brand gear oils in Bravo 1 drives??

I have used their engine oil, 15W40 blend for 30 years with tremendous engine life and very clean engines in everything I own from lawnmowers and tractors on up. 30 years on a 1979 Snapper riding lawnmower motor literally with no smoke, oil usage, or excessive compression loss is pretty impressive.

Just want to try the gear oil because its convenient as i get a lot of oil shipped from them already.

Just a little leary of any cone clutch slippage with their soluble moly and other proprietary friction additives.

one way to find out let us know how it goes

What are you going to use Kurt? I got a case of the 75-90 to put in my drives when I get them back.

I thought moly was a no no with the clutch ?

Boost... I hate to be the guinea pig, wanted yall to do that. haha. Actually hoped someone had. i will definitely put the info on here if we try it and if it works. But i hate to be the tester. Surely someone has used it, maybe not.


Drock... I believe I had looked at the # 293A 75/90, but will have to double check. I know they make a few different types.


SB.... yeah that's what I am worried about. Slipping.. My brother has successfully taken them apart and re-scuffed, re-sanded, or whatever he did and it worked when peeps would bring him slipping cones..
But that by itself is hours of work, and in middle of summer season, so may not be good idea.

Does amsoil, redline or others use moly? Seems very few actually state ingredients on a TDS like Schaeffer's does. They just say "proprietary" additives. I hate to be a tester after dumping 10k into them.

You guys roll the dice and might come up snake eyes, expensive lesson learned

Of course Mercury won't tell you squat. Only that they reccomend genuine mercury products. Lol

I'm a believer in Amsoil products, but I put some in my Bravo XR once and the clutch slipped immediately. Went back to dino oil and the condition went away.

Schaeffer gear oil in bravo one drives
 

ALL IN. Interesting about the Amsoil experience you had.

Only ones i have run were Merc, Bravo Shop, and last two years was Bel Ray gear oil. Just sooooo much cheaper. Of course price is really nothing if you have issues with it, so i would never something that i thought wouldnt work good to save any amount of money.
. Bel Ray said if you don't truly need the synthetics, as in low temps, etc, then the plain dino oil like the Bel Ray and others will perform just fine within the manf change recommendations.

Some say Merc is a "low bidder" type situation and no better than many other oils. Who knows. Does Merc really want it to be the best .... I doubt it.

Its interesting. Why is it that some automotive MANUAL transmissions run 90 wt, others use ATF ????

Wish i had the time and money, i like to play and try things, so it would be a shock if a good ATF would work in an outdrive!!!

Just a note: Air in the gear oil helps the gears spin easier in the oil in the lower unit than it does just oil.. I know some racers that have plugged of between the two cases, then drill and tap an "upper" oil drain hole for the LOWER unit below the joining surfaces of the cases.

The idea is to get air entrapped at the top of the lower case....... just like the upper case traps air.

I think these guys look for every 1/4 mph they can get.

ATF in a constant high load high shock high temp high power diff with two sets of 90* power transfers ?

Totally not an ATF environment that a few manual gearboxes are/can be.

No car or light truck see’s the constant high load a boat see’s, even if boat driven easy.

I'm really curious about the moly additive and the cone clutch..

Yes, I was surprised. But I turned it on and off with a simple gear lube change. Amsoil was too slick evidently.

I run Amsoil Severe Gear in my #6's and transmissions.

I remember back in the Factory 2 days, someone tried Mobil 1 15-50 motor oil in there drives, The drive didn't last long!!

lol, that’s no thinner than a synthetic 90w gear lube and with none of the protection either. Oops.

It appears Amsoil has changed their formulation in the Severe Gear. George from All American Drive ran into it a while back and is warning people. He sells NEO oil which is a bit pricey, $85.00 a gallon, that's why he can warranty a drive for 24 months even in high horsepower applications. If you want your drive to live as long as possible than you need to be using NEO. I have 2 years on the oil in my drive and it's still clear. I was nervous about running gear lube that long especially the way I drive, so I check it regularly and magnets are clean and oil is clear. Transmission shifts like a dream.

This NEO ?

Yep that's the stuff, except I buy it from AADS for $85. That stuff is so slippery, don't get it on anything that you want to pick up.

You realize that you can buy it directly from NEO for $70 a gallon?

Used Amsoil Marine for years with no clutch issues. Severe Gear is another story.

Including shipping ?

No but doubt George is shipping it on his dime either.

Lol,
I was asking so we compare buying from NEO, AADS, Amazon, or anywhere else.

product cost + shipping cost = total cost.

Total cost is what I look at.

$10 shipping for 2 gal. $152 total

2 years on drive lube??? I change mine twice per season. :cool-smiley-011:

Overkill. Wasting money at twice / season if using a good oil. Unless you put on 200 hrs each year.

Maybe. But merc recommends it. Plus, how will you know that you've got water in the drive until you drain it?? I'd rather know at 25 hours vs 200 hours!

MAINTENANCE
DRY SUMP SIX DRIVE MAINTENANCE SCHEDULE

Initial break‑in at 25 hours. Drive ‑ Change Oil and filter

Every 50 hours of operation. Perform 25 Hour Maintenance Items.

Gotcha.
I didn't realize you have #6's. I'm not familiar with the maint requirements on yours.