gear oil / engine oil

Discussion in 'Gas Engines/Drives/Transmissions/Props' started by tommyb, Mar 8, 2012.

  1. tommyb

    tommyb New Member

    6
    Jan 18, 2010
    Denmark
    270 sundancer
    1995
    502 MPI w/Bravo III duoprop
    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 ?
     
  2. Henry Boyd

    Henry Boyd Active Member PLATINUM Sponsor

    Apr 24, 2007
    Above Cape Ann
    02' 280 DA
    496 w BIII
    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
     
  3. susanandlance

    susanandlance New Member

    Feb 10, 2011
    Florida
    2005 Fountain 27, 496HO power, towed by Chevrolet Duramax HD 4x4
    496HO, 425 HP
    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:
     
  4. spfortjohn

    spfortjohn New Member

    640
    Jul 31, 2011
    Orange Beach, AL
    2014 219FS Keywest CC
    F200 Yamaha Outboard
    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
     
  5. wish2fish

    wish2fish Active Member

    Dec 19, 2006
    Locust Creek, Ohio River mm 433
    2003 220BR
    5.0 MPI
    Might want to check your shop. My local dealer/shop was using Seirra brand.
     
  6. Molson

    Molson Active Member SILVER Sponsor

    Aug 5, 2011
    Midland, ON
    1997 330 DA
    Twin 7.4 carb V-Drives
    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.
     
  7. jason78

    jason78 Active Member TECHNICAL Contributor SILVER Sponsor

    Sep 3, 2008
    Fort Mill, SC / Lake Wylie
    1997 20 Outrage
    200 Merc Offshore
    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
     
    Last edited: Mar 8, 2012
  8. Henry Boyd

    Henry Boyd Active Member PLATINUM Sponsor

    Apr 24, 2007
    Above Cape Ann
    02' 280 DA
    496 w BIII

    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
     
  9. Bucit

    Bucit New Member

    Mar 12, 2010
    St. Petersburg Florida
    2005 280 Sundancer
    2004 SPD-104 Achilles w/ 8hp Yamaha
    Twin 4.3 MPI's with Alpha drives.
    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.
     
  10. jason78

    jason78 Active Member TECHNICAL Contributor SILVER Sponsor

    Sep 3, 2008
    Fort Mill, SC / Lake Wylie
    1997 20 Outrage
    200 Merc Offshore
    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
     
  11. Henry Boyd

    Henry Boyd Active Member PLATINUM Sponsor

    Apr 24, 2007
    Above Cape Ann
    02' 280 DA
    496 w BIII
    Yup,that's right.

    Sorry bout that Chief
     
  12. Molson

    Molson Active Member SILVER Sponsor

    Aug 5, 2011
    Midland, ON
    1997 330 DA
    Twin 7.4 carb V-Drives
    I realize that, I was asking about the Amsoil Marine gear lube for lower units (for boats)


     
  13. JimG

    JimG Active Member SILVER Sponsor

    Nov 4, 2008
    Southern WV
    2007 310 DA
    Kohler 5ECD
    Twin 350 Mags
    Raw Water Cooled
    V-Drives
    What is the recommended oil for my 350 Mags, MerCruiser regular, blended, or full synthetic?
     
  14. Lazy Daze

    Lazy Daze Active Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    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.
     
  15. susanandlance

    susanandlance New Member

    Feb 10, 2011
    Florida
    2005 Fountain 27, 496HO power, towed by Chevrolet Duramax HD 4x4
    496HO, 425 HP
    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.
     
  16. tommyb

    tommyb New Member

    6
    Jan 18, 2010
    Denmark
    270 sundancer
    1995
    502 MPI w/Bravo III duoprop
    The price was not the issue, but simply experience with other oil than Quicksilver/mercruiser product.
     
    Last edited: Mar 8, 2012
  17. andy k

    andy k Member

    401
    Feb 7, 2009
    Door County, Wisconsin
    1998 3075
    2 x Mercury 5.7 carb
    Yes I use AMSOIL for both
     
  18. susanandlance

    susanandlance New Member

    Feb 10, 2011
    Florida
    2005 Fountain 27, 496HO power, towed by Chevrolet Duramax HD 4x4
    496HO, 425 HP
    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:
     
  19. Loneranger

    Loneranger New Member

    May 2, 2008
    Knoxville TN
    2000 SeaRay Sundancer 270
    7.4l Mercruiser w/ Bravo III
    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...bil_1_Fully_Synthetic_Gear_Lube_75W-90LS.aspx

    John
     
  20. paulswagelock

    paulswagelock Member

    904
    Oct 25, 2010
    pa
    2008 270 SLX 496 mag bravo 3
    8.1 496 / bravo III
    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.
     

Share This Page

Show Sidebar