QUID. IF SUCH "PURE" FUEL IS NEEDED, THEN IT SHOULD BE ORDERED IN ADVANCE PRIOR TO ACFT ARRIVAL. B. FUEL PRICES CAN BE HIGH AT OUTLYING AIRPORTS. C. RUSSIAN CUSTOMS IS ATTEMPTING TO PLACE A 15% "CUSTOMS FEE ON FUEL PRICES" THROUGHOUT RUSSIA. OPERATORS ARE FOREWARNED OF THE POSSIBILITY OF THIS FEE BEING CHARGED.