The reason you are catching more on the cleanside, is the lack of proper flow in the ecoboost. It has marginal flow at non boost, and no evac during boost so you have excess crankcase pressure pushing the vapors out the cleanside.
Also, I have a test for you....install the RX can, or SMC/Elite E2, or Apex can after the JLT and watch them all catch as much or more than the JLT does first in line. The reasons are #1, the capacity of the JLT is app 1.5 oz's VS 8-16 of the others, so that small internal volume never lets the flow slow enough to avoid pull-through (unless on a supercharged vacuum port at idle when the CFM of flow is minimal). and 2, there has to be a clear separation of the incoming oil laden vapors from the separated vapors and that takes a series of totally separate chambers and processes. But even with a more robust baffle system, you will find all of the cans smaller than 12 plus ounces, there will always be pull through.
The JLT is first rate in quality and precision/appearance, but in the real world doing this simple test shows it, as most, will only catch a portion of the oil/water present.
Take a look at what is caught in a short time in the RX can, that is 3-4 times the entire capacity of any of the small cans:
RX Dual Check Valve Catch Can and 2013 Ecoboost F150So my intent is not to offend as this is a very common misconception on most cans....a user will see it catches some oil, and assumes it does a complete job. There is far more to it than that as even a beer can with 2 fittings will catch as much as 99% of the cans marketed...and this does not mean the designer/manufacturer has intended to in anyway deceive or mislead (some do), it just means the amount of information and data needed to create a truly effective design is far more involved as this is the most misunderstood system on cars and light trucks today, so most that offer a can have put all they know into it, but without understanding all the flow dynamics, Bernoulli effect, Coalescing and condensing principals, etc. they are all made upon assumptions instead of the science needed.
So try the test I describe (will cost app $8-$10) and see for yourself. The few that do a good job are all direct competitors of ours and we would certainly do better in sales to not acknowledge those that have tested and shown to be so effective, but then we would be no different than the rest that claim they are the best and nothing else should be considered.
