pre mix

[RETed]

As long as it carries the TC-W3 certification, you should be fine.
The TC-W3 certification has standards for performance, and flowing through fuel injectors should not be a problem.
The details:
http://www.nmma.org/certification/ce...oil/tc-w3.aspx

As for no lubrication on decel...
There are some tidbit in the above link.
Internal lubrication is a combustion by-product of the pre-mix burning.
Unless you're doing some really extended decel periods, it's not a concern.
Remember, the winning 4-rotor 787B @ LeMans ran pre-mix with decel fuel-cut off (this is primarily for fuel economy); internal engine wear was not a problem.
This has all been documented in tech papers - i.e. SAE papers, etc.
If it really matters, it was running Idemitsu pre-mix.


-Ted

[Pete_89T2]

FWIW, when I first installed the RA OMP adapter on my S5T2, I was adding the same premix lube to the gas at the typical rate Ted mentioned of 16oz per tank, which comes out to a ratio of about 128:1, fuel to oil. Did that mainly as an insurance policy, in the event my adapter install was all jacked up.

That first tank of gas rewarded me with a rather smoky exhaust, as the adapter was clearly working, so I was dumping more than double the necessary amount of premix into the engine. I continued to add some premix to the gas in the next few tanks of gas, but at much leaner ratios. Started at 8oz/tank, and eventually down to 2 oz/tank, while I tracked fuel consumption & premix consumption in the adapter tank so I could characterize it. The premix smoke/stink stopped being noticeable at about 4oz/tank.

After doing the math over about a dozen tanks of gas, it turns out the adapter (with my stock electronic OMP) delivers premix to the engine at an average rate of about 100:1. Given these results, I no longer bother to add any premix to the gas, I just top off my premix tank when needed.