MarineEngine.com - Your online store for all types of marine engines and boat parts.
PHONE ORDERS
Monday - Friday
9:00 AM - 5:00 PM EST
Click for TOLL-FREE Number
Online Checkout
Special $9.95 Flat Rate Shipping
(800) 209-9624 | Home | Contact | Shipping | Returns | Cart View your shopping cart.
Part Number Search
Shop by engine/drive part number.
Original & matching parts for sale.
Manuals & Accessories
Shop by description, item number
or manufacturer's model number.
Boat Repair Forum Boat Repair Forum   Boat Video Gallery Video Gallery
   
Results 1 to 8 of 8
  1. #1

    Default Using Yamaha lube, fuel additive, etc

    I just bought a used pontoon boat to use in freshwater. It has a Yamaha 50hp 4 stroke OB. In reading the manual on-line, I see the 'suggestion' to use Yamalube oil, Ring Free Fuel Additive and Yamaha Fuel Conditioner and Stabilizer.

    How important is it to use the Yamaha "recommended" products -vs- other brand products.?

    What brand oil can I use (dino or synthetic) ?

    Should I use the Ring Free Fuel additive when using 87 octane brand name gas with 10% ethanol.?

    Can I use Sta-Bil Marine additive in lieu of Yamaha fuel stabilizer?


    Thanks in advance

  2. #2
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    3,184

    Default Re: Using Yamaha lube, fuel additive, etc

    Quote Originally Posted by retiredbob View Post
    I just bought a used pontoon boat to use in freshwater. It has a Yamaha 50hp 4 stroke OB. In reading the manual on-line, I see the 'suggestion' to use Yamalube oil, Ring Free Fuel Additive and Yamaha Fuel Conditioner and Stabilizer.

    How important is it to use the Yamaha "recommended" products -vs- other brand products.?

    What brand oil can I use (dino or synthetic) ?

    Should I use the Ring Free Fuel additive when using 87 octane brand name gas with 10% ethanol.?

    Can I use Sta-Bil Marine additive in lieu of Yamaha fuel stabilizer?


    Thanks in advance
    Is this a 4 stroke or is that a typo? Ring free is for 2 stroke engines, Yamalube is also for 2 stroke engines.

  3. #3

    Default Re: Using Yamaha lube, fuel additive, etc

    This is what I saw:
    "Yamaha recommends Yamalube® 4-M FC-W™ for all four-stroke models. Yamalube® 4-M is formulated to meet or exceed all Yamaha factory requirements plus the new FC-W™ rating from the NMMA® (National Marine Manufacturers Association, www.nmma.org). This standard specifies an oil formula designed for the unique needs of marine four-stroke engines"

    and

    "
    Ring Free is a result of joint development between Yamaha and Oronite corp ( subsiderary of Chevron). There is a misconception that Techron and Ring Free are the same. The fact is that Ring free was made to be used in 2 cycle water cooled engines of which have different combustion temperatures than normal auto use. Techron is made for 4 cycle auto use. If you look at the grand scheme of things Ring Free is not expensive. 1 12oz bottle will treat 120 gallons of fuel and is priced at $8.99. Compare that to your auto fuel additves, they run about $7 to $9 and treat a max of about 20 gallons or less.
    Ring Free is suggested in most Yamaha outboard users manuals. The main purpose is to keep carbon down to a minimum. Which is more prevalent these days due to fuel additives.
    It benefits 2 stroke outboards the most since these engines tend to carbon cake at the ports and behind the rings. One other good reason is some Yamaha 2 stroke outboards use an oxygen sensor. Ring Free helps keep the sensor from fouling up.
    Both Evinrude and Merc have their own branded fuel additives that pretty much do the same thing! "



    But, it seems that the 4 stroke users manual has quite a writeup suggesting using it in 4 strokes as well.

  4. #4
    Join Date
    Sep 2010
    Location
    Jersey Shore
    Posts
    3,184

    Default Re: Using Yamaha lube, fuel additive, etc

    In short, I would only use Yamaha oils and additives in Yamaha engines. I don't see the point in adding ring free to a 4 stroke engine.

  5. #5

    Default Re: Using Yamaha lube, fuel additive, etc

    So, from the few comments, and from further google searches including the Yamaha Web site, it seems that any quality 4-stroke/water cooled OB oil will be acceptable:" Yamaha recommends Yamalube, of course, but if you simply cannot find it, choose oil that specifically displays the FC-W® rating logo."

    Sta-Bil fuel additive should be as good as Yamaha's conditioner/stabilizer (and less expensive and easier to find in the store).

    And Yamaha's Ring Free Fuel Additive is okay for 4-stroke engines but is primarily used for 2-stroke engines which have more carbon build-up. So, use it if I like, use it occasionally, or don't really need to use it - maybe option 2 is best 'use it occasionally'.

    The suggestion to install a fuel/water separator is a good idea if the engine does not already have one (especially with E10 fuel) <<and going to E15 soon per Obama's edict>>. Yamaha says all newer engines are made to run on E10 but *NOT* anything higher!!

  6. #6
    Join Date
    May 2011
    Location
    Alaska
    Posts
    289

    Default Re: Using Yamaha lube, fuel additive, etc

    Ring Free does a good job of keeping valves clean for sure. Four stroke rings, particularly oil control rings can get stuck. Ring free works. Cheap insurance.

    On the subject of ethanol isn't it bizarre that we have to have that rammed down our throats when it is hard to find any logical thinking person who doesn't view it as anything but a net economic loss on so many fronts.

  7. #7

    Default Re: Using Yamaha lube, fuel additive, etc

    ring free is recomended for 4stroke obs. read page 29 of the 06 f150 owners manual.
    Not being a smart ass, but, i have seen the results of using ring free on a f225. it brought the compression up to acceptable levels.

  8. #8

    Default Re: Using Yamaha lube, fuel additive, etc

    My only suggestion is don't let ethanol gas sit in it for too long even if it is treated. Also I was told to make sure your set-up will allow the motor to run at it's recommended rpm at wide open throttle. Those 4 stroke need to be run wide open some of the time to get the temp up and prevent any "making oil" issues.

    Your choice on the synthetic, I would decide on how often I was going to use the boat vs how often to service it. If your only going to put a few hours per year on it why spend the extra on synthetic if your do an annual oil change? Planning on running ALOT per yea might want to go with the synthetic
    Last edited by pas_bon; 10-31-2011 at 12:04 AM.

Similar Threads

  1. OMC 42 Fuel Additive
    By tboltmike in forum Johnson Evinrude Outboard Archive
    Replies: 2
    Last Post: 10-28-2008, 08:55 PM
  2. Soltron fuel additive
    By Louie Boykin in forum Detroit Diesel
    Replies: 5
    Last Post: 09-16-2008, 07:47 PM
  3. Fuel additive
    By fleter in forum Miscellaneous marine engine topics
    Replies: 8
    Last Post: 03-05-2008, 06:40 AM
  4. Fuel Additive
    By basser1365 in forum Mercury Mariner Outboard Archive
    Replies: 4
    Last Post: 02-17-2008, 02:54 PM
  5. Can I use fuel additive to clean fuel system 25hp 89 merc
    By van123 in forum Mercury Mariner Outboard Archive
    Replies: 2
    Last Post: 08-23-2007, 07:56 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •