TM 92350-287-10 -KEY- Expected Temperatures Lubricants Capacities Above 15°F +40°F to -10°F +40°F to -65°F Intervals (Above -9°C) (+4C to -23°C) (+4°C to -54°C) OE/HDO Intervals are as MIL-L-2104D) follows: LUBRICATING D - Day; Daily OIL, Internal Com- Semiannually bustion  Engine, A -Annually Tactical Service Intervals  are based on OEA normal hours of (MlL-46167) operation and LUBRICATING moderate oper- OIL Internal Com- ating  condi- bustion Engine, tions. Arctic APU Crankcase 3 1/2 qt OE/HDO OE/HDO OEA (3.31L) 15W/40 15W/40 APU Chaincase 1 qt OE/HDO OE/HDO (0.98L) 15W40 15W40 NOTES: 6.  APU CHAINCASE OIL LEVEL CHECK. WARNING APU  chaincase  oil  is  hot  after  operation.    Make  sure  chaincase  oil  is  cool  before checking oil level. Open side APU access door.  Reach around to rear of APU compartment (to your right side) and remove filler plug (9). With finger, check that oil level at fill hole reaches to bottom of threads.  If necessary, add oil to chaincase through fill hole until oil level reaches threads (see key for required oil type).  Install filler plug (9). 7.    APU CRANKCASE LEVEL CHECK.  Open front APU access door.  Unscrew and remove oil  level  dipstick  (8)  and wipe with clean rag.  Reinsert dipstick, and remove it again.  Observe oil level indicated on dipstick.  If oil level reads below full (F) mark, APU crankcase oil fill cap (7) and add oil until level rises to F mark (see key for required oil type). Install dipstick and screw it down.  Hand-tighten. E-9