TM 55-1510-22010 Table 2-11.  Standard, Alternate and Emergency Fuels ENGINE ARMY STANDARD FUEL ALTERNATE TYPE EN1ERGENCY FUEL TYPE *MAN. HOURS PT6A MIL-T-5624 MIL-T-5624 MI-G-5572 150 Grade JP-4 Grade JP-5 Anv AV Gas Grade JP-8 *Maximum operating hours with indicated fuel between engine overhauls (TBO). d. Drain water from fuel tanks.  filter cases.  and pumps prior to first flight of the day.  Preheat, when required to insure free fuel drainage. e. Avoid dragging the fueling hose where it can damage the soft.  flexible surface of the deicer boots. f. Observe NO SMOKING precautions. g. Prior  to  removing  filler  cap  insure  that  the  hose  is grounded to the aircraft. h. Wash off spilled fuel immediately. i. Handle  the  fuel  hose  and  nozzle  cautiously  to  avoid damaging the wing skin. j. Do  not  conduct  fueling  operations  within  100  feet  of energized   airborne   radar   equipment   or   within   300   feet   of energized ground radar equipment installations. k. Wear  only  nonsparking  shoes  near  aircraft  or  fueling equipment.  as shoes with nailed soles or metal heel plates can be a source of sparks. 2-90.  FILLING FUEL TANKS. WARNING Prior  to  removing  the  fuel  tank  filler cap,  the  hose  nozzle  static  ground  wire shall  be  attached  to  the  grounding  lugs that  are  located  adjacent  to  the  filler opening. Fill tanks as follows: a. Attach bonding cables to aircraft. b. 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. c. Fill main tank before filling respective auxiliary tanks unless less than a full fuel load is desired. d. Secure applicable fuel tank filler cap.  Make sure latch tab on cap is pointed aft. e. Disconnect bonding cables from aircraft. 2-91.  DRAINING MOISTURE FROM FUEL SYSTEM. To remove moisture and sediment from the fuel system, 12 fuel  drains  are  installed  (plus  one  for  the  ferry  system,  when installed). 2-92.  FUEL TYPES. Approved fuel types are as follows: a. Army Standard Fuels.  Army standard fuel is JP-4. b. Alternate Fuels, Army Alternate fuels art JP-5 and JP- 8. c. Emergency Fuel.  Avgas is emergency fuel and subject to 150 hour time limit. 2-93.  USE OF FUELS. Fuel is used as follows: a. Fuel limitations.  There is no special limitation on the use, of Army standard fuel, but certain Change 2   2-82