DO NOT hold oil samples. Submit oil
ARMY OIL ANALYSIS PROGRAM (AOAP).
samples as soon as they have been taken.
For Active Army units, obtain samples from engine,
Seasonal oil changes will be made due to
transmission, and hydraulic system every 50 hours of
expected temperatures (see applicable
operation or 90 days (whichever comes first). Re- serve
or National Guard activities will use 50 hours or 180 days
FOR OPERATION OF EQUIPMENT IN PRO-
as the prescribed intervals. Reserve and National Guard
TRACTED COLD TEMPERATURES BELOW -15 °F
equipment in frequent use during active duty training
period will adhere to the schedule for Active Army units.
(-260C). Remove lubricants prescribed in applicable
As a minimum, one sample from each unit's two week
table for temperatures above -15°F (-260C). Lubricate
active training period will be submitted for each item of
with lubricants specified in applicable table for
equipment. Send these samples to the nearest AOAP
temperatures below -15°F (-260C). If OEA lubricant is
Refer to TB 43-0210 for sampling
required to meet the temperature ranges prescribed in
instructions. When or if AOAP laboratory support is
the table, OEA lubricant is to be used in place of
unavailable, hard time intervals will apply. Sampling
OE/HDO-10 lubricant for all temperature ranges where
valves have been provided for engine, transmission, and
OE/HDO is specified.
hydraulic system (see Views L, N, and 0).
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