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tommyb
03-08-2012, 05:58 AM
Anyone using gear oil or engine oil for MerCruiser Bravo III outdrive and MerCruiser engine, other than MerCruiser brand, if yes what brand/type, experience ?

Henry Boyd
03-08-2012, 06:57 AM
The first year we had our boat the previous owner's yard did the spring commissioning and used a good quality non Mercruiser brand. The engine consumed about two quarts (~ 2 liters) over 75 hours. The next year and (following four) our yard used the Merc brand and we have not consumed a drop. As an FYI there are two types Merc gear oils, one recommended specifically for the BIII, the other is not. I can't remember the specific name, but the BIII gear oil is the one dyed blue green.

Henry

susanandlance
03-08-2012, 07:21 AM
Henry are you sure about that?? I thought the blue/green was just the Hi-performance gear oil, meaning the better more expensive one. I've been using the Hi-Performance/green/blue, for years in everything from BI, B2, BIII, and now alphas.:huh:

spfortjohn
03-08-2012, 07:26 AM
Why? You spend thousands on a boat and try to save a few bucks on cheap oil and lube. Pony up the money and use the correct fluids

wish2fish
03-08-2012, 07:33 AM
Why? You spend thousands on a boat and try to save a few bucks on cheap oil and lube. Pony up the money and use the correct fluids

Might want to check your shop. My local dealer/shop was using Seirra brand.

Molson
03-08-2012, 08:42 AM
Has anyone used the Amsoil HP Gear lube? I use the HP Merc stuff now but a friend became an Amsoil dealer and I can get it at a good price. I used to run the engine oil in my cars and race cars and liked it then.

jason78
03-08-2012, 08:51 AM
Henry are you sure about that?? I thought the blue/green was just the Hi-performance gear oil, meaning the better more expensive one. I've been using the Hi-Performance/green/blue, for years in everything from BI, B2, BIII, and now alphas.:huh:

Merc Hi-Performance Gear Lube (Blue/Green)= REQUIRED for Bravo 3, Recommended for Alpha

Merc Standard Gear Lube (Brownish)= Alpha Only



Also, to the OP, you can get Merc Lubricants from these guys more reasonable than most places. I just buy the 2.5 Gallon Gear Lube

http://www.mertenmarine.com/servlet/StoreFront

Henry Boyd
03-08-2012, 10:02 AM
Has anyone used the Amsoil HP Gear lube? I use the HP Merc stuff now but a friend became an Amsoil dealer and I can get it at a good price. I used to run the engine oil in my cars and race cars and liked it then.


Car engines and boat engines have two different operational lives. Its not the same thing.



Might want to check your shop. My local dealer/shop was using Seirra brand.

I believe that Sierra brand parts are made by Mercury, but sold outside the Mercury brand sales channel of "approved" dealers and service providers.

Henry

Bucit
03-08-2012, 10:08 AM
i used the 2 stroke Amsoil in my Johnson outboard for years. It's a great oil. The engine smoked a lot less than normal 2 storkes. I also ran nothing but Amsoil in all of my engines when I has the marine constrcution company. I wouldn't hesitate to use it again. All in all it's probably a better oil than Mercs.

jason78
03-08-2012, 10:33 AM
I believe that Sierra brand parts are made by Mercury, but sold outside the Mercury brand sales channel of "approved" dealers and service providers.

Henry

I believe you are thinking of Quicksilver. That is Merc's out of dealer network brand.

Sierra is a generic parts manufacturer.

Sent from my BlackBerry 9930 using Tapatalk

Henry Boyd
03-08-2012, 10:51 AM
I believe you are thinking of Quicksilver. That is Merc's out of dealer network brand.

Sierra is a generic parts manufacturer.

Sent from my BlackBerry 9930 using Tapatalk

Yup,that's right.

Sorry bout that Chief

Molson
03-08-2012, 11:19 AM
I realize that, I was asking about the Amsoil Marine gear lube for lower units (for boats)



Car engines and boat engines have two different operational lives. Its not the same thing.




I believe that Sierra brand parts are made by Mercury, but sold outside the Mercury brand sales channel of "approved" dealers and service providers.

Henry

JimG
03-08-2012, 11:25 AM
What is the recommended oil for my 350 Mags, MerCruiser regular, blended, or full synthetic?

Lazy Daze
03-08-2012, 11:35 AM
What is the recommended oil for my 350 Mags, MerCruiser regular, blended, or full synthetic?

Full synthetic... but then a manufacturer will always recommend their latest and greatest (and, usually, $$). The reality is that either of those three choices are perfectly fine for your engine.

susanandlance
03-08-2012, 01:56 PM
The Quick Silver/Mercruiser type is the same as Mercruiser Hi-Performance that the dealer sells, only you can buy the QS Hi-Performance at most Walmarts, and save BIG over buying from your local Merc dealer.

tommyb
03-08-2012, 02:37 PM
The price was not the issue, but simply experience with other oil than Quicksilver/mercruiser product.
Why? You spend thousands on a boat and try to save a few bucks on cheap oil and lube. Pony up the money and use the correct fluids

andy k
03-08-2012, 02:43 PM
Yes I use AMSOIL for both

susanandlance
03-08-2012, 04:46 PM
I'm sure Amsoil makes superior products, I use it in my Suburban and Harley-Davidson, it's darn good stuff, and I bet their stuff is just as good or better than mercruiser stuff.:grin:

Loneranger
03-08-2012, 05:01 PM
This can be a subject that is very emotional for people, often without a lot of science to back up statements other than anectotal reports.

I am not a big believer in using products just because it is branded. If I can find no suitable substitute then sure I will use brand name products. I will also use name brand products if it works well and does not have an exorbatant price associated with it. You hear quite a few comments about spending thousands of dollars on a boat so why become cheap now when it comes to maintenence items. To me it is not about the cost but about value. Why pay for advertising only if I do not have to?

My biggest complaint about mercruiser hi performance gear oil is they do not specify the viscosity or the API grade. I asked a similar question on this forum several years ago and was able to recieve no answer as to what SAE viscosity or API grade mercruiser recommends. Mercruiser keeps it a secret I guess. My volvo stern drive has a volvo specific lube recommended also, but Volvo also specifies 75W90 viscosity with API Service GL-5. I happen to use mobil 1 lube in both the volvo and the bravo 3 sterndrive. If you want to know something about the mobil 1 specification it is easy to find.

http://www.mobiloil.com/USA-English/MotorOil/Other_Products/Mobil_1_Fully_Synthetic_Gear_Lube_75W-90LS.aspx

John

paulswagelock
03-08-2012, 07:03 PM
I have stuck with the Mercruiser gear lube because they won't share any specifications, so I do not know how to evaluate options. The engine oil is a different story. I used Merc branded oil last year and did an oil analysis year end. It sheared to a 20 weight oil, exactly what Merc claims their oil won't do. Never again for me. There are lots of alternatives, and since they refer to a spec, I can make an informed decision on what to substitute.

spfortjohn
03-08-2012, 08:30 PM
Might want to check your shop. My local dealer/shop was using Seirra brand.

That is why I do it myself. Doing a friends boat next weekend

2texoma
03-09-2012, 03:32 AM
Merc doesn't make thier fluids much less anyone elses. Merc gear oils are made by Bel-Ray Inc,Farmingdale NJ
You can reach them @732-938-2421 Or get it at one of these places under the Bel-Ray label
Yocum's,Milton PA 570-742-4706 / Amped Powersports,Halifax PA 717-896-8385 / Bay Harbor,Staten Island NY
718-447-2020 / East Coast #1 , Trenton NJ 609-883-3169 And a million other outlets on 3 continents.
They make 3 GL5 oils 99735=Marine mineral Gear oil 99740=Semi-Synthetic 99741=Full Synthetic
Now Sailors, here is a tip when buying questionable ASTM rated lubs. The above oils are listed in acceding quility.
#35 says"Meets"all mfgs requirments #40 Says"Meets or exceeds"all mfgs req #41 says"Exceeds"all mfgs req
Anyone ever failed to catch that little diddy while reading labels on the lubricant isle? OhhellyeaIallwaysknewthat!

jason78
03-09-2012, 08:30 AM
Bel Ray has been discussed as the OEM for the Merc Gear Lube either here or on another boating forum a while back. Don't remember which one. As I recall, from the previous thread, when contacted they would not confirm or deny they made the Merc oil therefore could not give an exact substitute BR part number.

Regardless, from their pricing it appears it is still cheaper to buy the branded Merc Hi Performance.

Bel-Mar Marine Gear Oil available in a 12liter (3.17gallon) case= $203.88

http://www.belray.com/node/17759/buy

Merc Hi Performance Gear Oil (online price) 2.5gal for $99.00

http://www.mertenmarine.com/servlet/the-728/Mercury-Gear-Lube-High/De