H
ANDLING
, S
ERVICE AND
M
AINTENANCE
R
EVISION
:
-
D
ATE
:
12/29/04
P
AGE
:
29
Copyright
2004 Glasair Aviation, LLC Arlington, Washington All rights reserved
7-9 SERVICING
7-9.1 O
IL
S
YSTEM
CAUTION
Oil consumption tends to be higher during break-in periods on
new engines. Prolonged flights should be avoided and oil level
monitored closely during this period. New or newly
overhauled engines should be operated on straight mineral oil
for a minimum of 50 hours or until oil consumption has
stabilized. After this period, a change to an approved additive
oil may be made.
Consult your engine operator’s manual for the recommended grades of
oil to be used.
The engine oil filler cap and dipstick are accessible through the access
door on the right side of the upper engine cowling. Maximum oil sump
capacity of the Lycoming engines supported for the Sportsman is 8
quarts.
If a Lycoming engine is not equipped with an external full-flow oil filter,
the oil should be changed and the oil suction and oil pressure screens
cleaned and checked for metal particles every 50 hours. If a Lycoming
engine is equipped with an external full-flow oil filter and also an air
filter, the oil change intervals may be increased to every 100 hours as
long as the oil filter element is replaced every 50 hours. See Lycoming
Service Instruction 1319 B. If the engine does not have an air filter,
change the oil every 50 hours.