TM 1-1510-225-10 2-126 Table 2-18.  Recommended Fluid Dilution Chart AMBIENT TEMPERATURE (°F) PERCENT DEFROSTING FLUID BY VOLUME PERCENT WATER BY VOLUME FREEZING POINT OF MIXTURE (° F) (APPROXIMATE) 30º and above 20 80 10º 20º 30 70 0º 10º 40 60 -15º 0º 45 55 -25º -10º 50 50 -35º -20º 55 – 60 45 -45º -30º 60 40 -55º 1.   Use anti-icing and deicing fluid (MIL-A-8243 or commercial fluids). 2.   Heat Mixture to a temperature of 82º to 93 ºC (180º to 200 ºF). 2-87.  FILLING FUEL TANKS. Prior  to  removing  the  fuel  tank  filler  cap, attach  the  hose  nozzle  static  ground  wire to  the  grounding  sockets located adjacent to the filler opening. CAUTION Do  not  fill  the  auxiliary  fuel  tanks  unless outboard main tanks are full. Only  fill  ferry  fuel  tanks  after  the  aircraft main and auxiliary tanks are full. Fill tanks as follows: 1.   Attach bonding cables to aircraft. 2.   Attach bonding cable from hose nozzle to ground socket adjacent to fuel tank being filled. CAUTION Do  not  insert  fuel  nozzle  completely  into fuel cell due to possible damage to bottom of  fuel  cell.    Nozzle  should  be  supported and    inserted    straight    down    to    prevent damage to the anti-siphon valve. 3.   Remove  fuel  tank  filler  cap  and  fill  main tank  before  filling  corresponding   auxiliary tanks. 4.   Secure    applicable    fuel    tank    filler    cap.   Make sure latch tab on cap is pointed aft. 5.   Disconnect bonding cables from aircraft. 2-88.  DRAINING MOISTURE FROM FUEL SYSTEM. Twelve  fuel  drains  are  installed  (plus  one  drain for  the  ferry  fuel  system,  when  installed)  to  remove sediment  from  the  fuel  system.    Two  drain  lines  are included  with  the  ferry  fuel  tanks  to  drain  off  moisture from the tanks. 2-89.  FUEL TYPES. a.   Approved Fuel Types.    Approved fuel types are as follows: 1.   Army Standard Fuels.  Army standard fuel is JP-8. 2.   Alternate Fuels.    Army  alternate  fuels  are JP-4 and JP-5. 3.   Commercial Standard and Alternate Fuels.   Refer to Table 2-16. 4.   Emergency Fuel. AVGAS is an emergency fuel and subject to a 150-hour time limit. 2-90.  USE OF FUELS. a.   Fuel Usage.  Fuel is used as follows: (1)   Fuel    limitations.        Fuel    limitations    are outlined  in  Chapter  5.    For  the  purpose  of  recording, fuel    mixtures    shall    be    identified    as    to    the    major component  of  the  mixture,  except  when  the  mixture contains  leaded  gasoline.    The  use  of  any  fuels  other than    standard    will    be    entered    in    the    FAULTS/  REMARKS   column   of   DA   Form   2408-13-1,  Aircraft Maintenance and Inspection Record, noting the type of fuel, additives, and duration of operation. WARNING