did you see my post in Unity Aus forum ?
if there is no oil leaking, it must be either seeping back into the tank, or because its not fully lifted the oil must be seeping into one of the other cylinders, not sure on your set up but i guess you got 1 pump to the front ? does the car completely drop one side but lift the other ? if so i bet the heavier side of the car is dropping (i.e. the one with the engine battery in) this happens if there is air trapped in the system, do you have selfbleeding tank caps ? if not try bleeding the system.
The trick is to work out where the fluid is going to !
hope this helps mate.
