Technical data

13773-001
12-20
Page 530 Nov 2000
fluid loss, must be determined before continued operation of the airplane. Any spilled brake fluid must
be removed immediately as it will damage any painted surface upon contact. Remove any dirt on the
brake fluid reservoir filler cap before opening.
C. Engine Oil System
Straight mineral oil (MIL-L-6082) should be used for the first initial oil change period (25 hours). After
oil consumption stabilizes the mineral oil should be drained and an approved engine oil used. (Refer to
12-10)
WARNING:
Avoid skin contact with used motor oil. In a laboratory study, mice developed skin
cancer when their skin was exposed to used engine oil twice a week, without
being washed off. Substances found to cause cancer in laboratory animals may
also cause cancer in humans.
CAUTION: The oil level should be brought to full before each long flight. Never fly the airplane with
less than 6 quarts of oil (5.7 Liters) in the crankcase of the engine. Oil consumption
tends to be higher during break-in periods on new engines. Under no circumstances
should automotive oil be used, for such oils could cause engine damage. If the oil sys-
tem becomes contaminated, the complete oil system must be flushed and the oil cooler
replaced.
Do not mix additive oil and straight mineral oil. The engine must be thoroughly warmed,
prior to draining the oil from the engine. Always change the filter when changing oil. This
is especially important when changing from straight mineral oil to compounded or addi-
tive oil. After changing from straight mineral oil to compounded or additive oil, inspect
the oil filter for evidence of sludge, if sludge is evident, replace the oil and filter more fre-
quently. Resume normal oil drain intervals after sludge conditions improve.
Note: During periods of prolonged operation in dusty areas or in cold climates, or when flights
have been of short duration with prolonged idling time, change oil and filter every 25
hours. The engine should always be brought to operating temperature prior to draining
the oil to assure complete draining of the oil. The engine oil filter and drain plug is
secured with safety wire. Check every used oil filter for metal particles and sludge.
(Refer to 12-20)