Thats the thing you dont, all a filter does it filter the oil not much thought goes into it you know. Look all I can say is this, His engine is still going my engine is still going, That should be proof enough that it works, Also when you chnage your oil for 5,000KMS is doesnt really matter in the long run now does it. Its a proven fact that you dont need to change the filter every service maybe every two and as I said above, Do you really know if the no name brand isnt rico?