In normal practice there are no strict limitations on taking oil samples while TOR-5 is connected, as long as sampling is done correctly from a dedicated sampling valve. The system is designed to work in parallel with routine diagnostics, and temporary sampling does not disturb its measurements. The main precautions are to avoid introducing air, moisture, or particles into the circuit and to ensure the flow is stabilized after sampling. Poor sampling technique can influence moisture or gas readings for some time, so flushing the valve and allowing the system to re-equilibrate is important.