SERVICE ENGINE OIL TANK
Under normal conditions, engine
shall be serviced with only one type
of oil (E253 or E254). Oil (E253)
is preferred for temperature above
-25ºF (-32ºC). Oil (E254) must be
used for temperature below -25ºF
(-32ºC). In an emergency, if one type
of oil is in engine but is not available,
the other type may be used. If the two
types of oil are mixed, the oil system
shall be drained and serviced as soon
as possible, but no later than 6 hours,
after engine operation.
Oil tanks on No. 1 engine and No. 2
engine are serviced in same way.
If engine has not been operated
within 24 hours, cooler oil can cause
an incorrect oil level reading. For
correct reading, check oil after engine
Check aircraft log book for type of oil used in
Push open engine oil access panel (1).
Indicator is about 6 inches below
access panel opening.
Check oil level on indicator (2). If pointer (3)
aligns with white line (4), servicing is not required.
If pointer is below white line, go to step 4.