I humbly believe we on the other side of the planet have been conducting the REAL Rx test. So far more than 72 bottles (3 cases @ A$550-600 a case) have been used in multiple forklifts, large trucks, and a few cars. Forklift and truck owners demand tangible results as their livelihood depends on it. For an engine, a forklift is about as bad as it gets useage wise, very intermittent useage leading to condensation, sludging like you woudn't believe, just generally used and abused. The drivers don't own them so you can imagine oil or coolant levels etc get little attention. Rx results so far are encouraging showing almost clean oil at the 100hr service points (using maint dose), whereas before black as Hades. An amazing change. Drivers are reporting it "seems to run better". The maintenance bills are decreasing and you can be d--- sure owners notice that real quick. Test not finished yet but results so far look very encouraging and we are sure its a commercially viable here even at our highly inflated prices. Now is this a better test than a 'one off' in a street driven vehicle? But be assured nobody can deny we have "put our money where our mouth is" as we say here.