What 2 stroke oil yall runnin?

[Yellowjacket]

The Wiendant link works for me, if it doesn't work I'd go to the Wiendant performance technology home page and then go to the racing products drop down menu and then click on the 2 cycle lubricant page. There is a discussion on their recommendations for high performance 2 cycle applications.

As I noted in the early post I had Emailed Mercury's manager of aftermarket lubricants, Heidi Stark-Klebs and discussed with her the differences between Rejuvenate and the Multifuel oil. She had said they were similar, but that the Multifuel oil had more detergents in it to help remove the deposits from heavy fuels, and more lubricity to contend with the washing of the cylinders with heavy fuel. Since the Mulitfuel oil was on back order early in our heavy fuel test program, we used the Rejuvenate for our early testing and switched over to the Multifuel later when it became available.

I also discussed with her that I was using the Rejuvenate in my race motor and had learned from West Marine that it had been discontinued. I indicated I was disappointed that it had been discontinued since it was obviously "good stuff". She indicated at the time that it wasn't really going to go away, and that it was being reformulated slightly, and basically re-released as a high performance racing oil. My guess is that the 2 stroke racing oil that was released in the end of March is the product that she was describing about 6 months earlier. Previously for the 200 ROS racing motor they had recommended the Multifuel oil. Now they are saying this new 2 Stroke Racing oil is usable in that engine.

Just conjecture on my part but putting 2 and 2 together, I'm guessing that the new oil is the rebranded Rejuvenate. The price is about the same, but having to buy 3 gallons as a time kinda sucks. I don't know why they would do that, but when I run out of Rejuvenate I'll go to the new 2 stroke racing oil.

[zul8tr]

The Wiendant link works for me, if it doesn't work I'd go to the Wiendant performance technology home page and then go to the racing products drop down menu and then click on the 2 cycle lubricant page. There is a discussion on their recommendations for high performance 2 cycle applications. ...................

.

I have no problem with getting on the Wiendant site and getting to their 2 cycle lubricants but once there this internal link gives jibberish:

........More information on Mercury Rejuvenate oil p/n 858102Q01 can be found at www.rejuvenateyourengine.com....

Does this internal link work for you?

Note the new mercury racing 2 stroke oil they now recommend for race engines and others is a TCW3 oil. Does that mean it is limited to 6800 rpm conditions per TCW3 specs or it greatly exceeds that TCW3 spec per Mercury Racing? The OptiMax 200XS SST is rated at 8000 rpm.

http://www.mercuryracing.com/outboar...ssst/specs.php

How will that fare with this oil and the TCW3 rpm spec?

Was Rejuvenate a TCW3 oil?

Agreed buying 3 gals min sucks! Maybe that will change as the oil makes its way to distributers?

[Yellowjacket]

No, that link doesn't work anymore. Mercury probably deleted that link when they discontinued the oil.

TCW3 is a rating test. It is run at 6,000 rpm on a water cooled engine. That doesn't mean that the oil doesn't have lubrication properties that are better, the oil could be fine for higher speed, you just don't know. The oil can be substantially better, but with only a TCW3 rating it is simply a crap shoot. All the rating means is that the oil was tested on a water cooled engine to 6,000 rpm, didn't have high wear, and it didn't form a high level of deposits, AND the oil doesn't contain heavy metal cleaning agents that would pollute rivers and streams.

Oils rated JASO-FD or ISO-EGD are tested on an air cooled two stroke high speed engine. This is a much tougher test for lubricity and heat tolerance since the air cooled engine runs a lot hotter than a typical water cooled engine and the engine speeds are higher. If you are running higher speeds you need an oil rated for higher speeds.

There is no reason you can't run multiple rating tests on an oil and achieve multiple ratings. You just have to pass the tests. The problem is that additives that provide high temperature and high speed lubricity tend to also not be compatible with a TCW3 rating because they don't meet the pollution requirements of TCW3.

There are some oils that are rated both TCW3 AND JASO-FD. That's what you want if you are running an outboard at high RPM.

Rejuvenate doesn't have a rating on the bottle. In some Mercury pages it was described as being rated to JASO-FD. In addition, on the jug it specifically states that the oil was "recommended for water cooled and air cooled 2 cycle engines....". I'm sure that Rejuvenate could pass the TCW3 test in terms of deposit formation and lubricity, but I also strongly suspect that Rejuvenate wasn't rated as TCW3 because it has heavy metal detergents in it that are not compatible with TCW3 requirements. That doesn't mean it won't work in an outboard, it just means that it most likely doesn't meet the pollution aspects of TCW3.

This is why Mercury had to reformulate it, because it wasn't "legal" as a TCW3 because of heavy metal pollution. The new 2 stroke racing oil has a TCW3 rating, but it also has better lubrication properties since it is recommended for high speed motors and is likely good for high speed use. The problem is that racing outboards also run at high temperatures, more like an air cooled 2 stroke than a typical pontoon boat put-putting around an inland lake. For that reason, you for sure don't want to use an oil with just a TCW3 rating since it may not have the high speed lubricity you need if you are running high rpm's.

I now have 3 gallons of "Rejuvenate" in the garage, and hopefully that will last me a good while. After that I'll use Multifuel oil since I have access to that too, but if the 2 stroke racing oil is as good as the Rejuvenate, I'll use that since it is less expensive than the Multifuel oil.

[zul8tr]

The TCW3 testing is done at different WOT rpm and less than 6000 depending on the engine trested according to the NMMA guide.

http://www.nmma.org/certification/ce...oil/tc-w3.aspx

So I suppose Mercury oils like Premium Plus TCW3 oil as they state exceed the NMMA tests since Mercury specifies its use in some of their 2 stroke engines that are rated at higher rpms than the NMMA tests. Does Mercury do their own tests or ship them out to independent labs? I hope the latter!

[Smokin' Joe]

Evinrude XD100 synthetic burns extremely clean and lubricates extremely well.
We've used it for several years now.
We run it 25:1 in our EP motor (6700-7000 RPM), 45SS (7000-7500 RPM) and in
our small motors (1980s era Evinrude 15 and Johnson 35) turning 6100-6500.
We would run 50:1 only below 6000 RPM but we don't run a motor that runs that slowly.

The TCW3 testing is done at different WOT rpm and less than 6000 depending on the engine trested according to the NMMA guide.

http://www.nmma.org/certification/ce...oil/tc-w3.aspx

So I suppose Mercury oils like Premium Plus TCW3 oil as they state exceed the NMMA tests since Mercury specifies its use in some of their 2 stroke engines that are rated at higher rpms than the NMMA tests. Does Mercury do their own tests or ship them out to independent labs? I hope the latter!