Technical data

13773-001
12-10
Page 330 Nov 2000
B. Oil System (See Figure 12-101)
The Teledyne Continental IO-550-N engine uses a wet sump pressurized lubrication system with an 8
quart (7.57 L) capacity. A filler cap with an integral dipstick is provided for determining the amount of oil
in the crankcase.
(1) Oil System Replenishing
CAUTION: For the first 25 hours of operation (on a new or rebuilt engine) or until oil consump-
tion stabilizes, use straight mineral oil conforming to MIL-L-6082. If engine oil
must be added to the factory installed oil, add corrosion preventive mineral oil
conforming to MIL-L-6082. Mixing oils of various specifications should be avoided.
After 25 hours of operation and after oil consumption has stabilized, use only avi-
ation lubricating oils which are ashless dispersant.
Straight mineral oil conforming to MIL-C-6529 with a corrosion preventive com-
pound added, can cause coking with extended use; therefore Cirrus Design does
not recommend its use for break-in or post break-in. Oil conforming to MIL-P-
46002 with a corrosion preventive compound added is recommended by TCM
and Cirrus Design for indefinite storage. (Refer to 10-30)
Note: Oil level should always be checked with the airplane sitting on a level surface, with
the engine off.
(a) Open the access door on the upper left-hand side of the engine cowling. Verify engine oil
level.
(b) If engine oil must be added, use only approved oil. Minimum oil quantity is 6 quarts (5.7
Liters).
(c) After the oil level has been verified, install filler cap.
(d) Secure the access door to the engine cowling.