Originally Posted By: kschachn
That part I don't get, what could you possibly see in a UOA? Any reputable filter is going to be filtering quite well at the end of the OCI, and besides how many particles are floating around in the oil anyway? Regardless of the efficiency, in a multi-pass environment all particles within the (ever increasing) capability of the filter will be captured.
Just what exactly would you see in a UOA that would indicate a difference between a normal filter and this one? I can't imagine any test outside of a standard laboratory filtering test that would show any difference unless there was some sort of catastrophic failure of the element.
Originally Posted By: Donald
I have tried one and say no difference in the UOA. So a good filter but I would not believe their website where they say you can run long OCIs by just changing your Microgreen filter a few times during the OCI.
I agree with you both, you will see a big difference with a 2 filter bypass installation as used on many trucks, but in this case the wear metals will not change in comparison with other brands and the only other indicator, the insolubles (General dirt) would only show a difference if the pressure relief valve stuck open after a cold start, or the media developed a big split!
There is a case with some truck diesels that do not contaminate the oil much for extending the OCI by changing the filter before the oil if an oil lab says a sample shows the oil is still in good form, BUT the operator says the oil filter has reached its max change interval.
With normal smaller truck or car engines, it's more likely that the oil will need changing before the filter.