LUBE OILS AND OIL ADDITIVES
a. The lubricating oils listed herein for each aircraft component will be used as speciied in the tables of this
b. When proper servicing equipment is available, aircraft components will be serviced through an oil servicing
unit. If this equipment is not available and cans are used, these cans will be thoroughly cleaned prior to each ser-
vicing to prevent contamination. Thoroughly agitate the oil in the can prior to adding oil to the system either at an oil
change or during routine servicing to ensure anti-foam additives are uniformly dispersed in the oil.
c. Gas turbine engine powered aircraft should be serviced with oil through a 3 micron or iner ilter to remove
d. When oil servicing units are used to service reciprocating engine powered aircraft, the oil should be iltered
through a 15 micron or iner screen to remove coarse contaminants.
e. Under no circumstances will synthetic oils, MIL-PRF-7808 or MIL-PRF-23699 , be mixed with mineral base
oils SAE-j1899 or MIL-PRF-2104. Mixing of synthetic and mineral oils is prohibited.
APPROVED COMMERCIAL ENGINE OILS.
a. When the Army standard oils speciied in Tables 3-1 and 3-2 are not available, the approved commercial
b. During long cross-country lights with destination at civilian airports, prelight planning will dictate that it is
good practice to carry a reserve of Army standard oil.
c. Table 3-4 lists lube oil by US Military speciication, grade or type, DA symbol, NATO number, NSN, unit of
issue and pertinent comments.