Some time ago, in most auto parts stores, there was a selling aid on the counter. It was a two-part display, one filled with gear lube, and one filled with the product that was being hyped. Each display had three plastic gears meshed together inside a clear housing, so you could see them rotate when a hand crank was turned. The one with the "normal" gear lube would barely get any lube to the top gear. The one with the "special" lube would easily transmit the lube to the upper gear. [I think this was a Lucas oil product] Does anyone know what the name of the "special" product was? I have a gearcase that I would like to use it in. Thanks