PURPOSE. This bulletin speciies fuels, oils, additives and hydraulic luids that will be used in Army aircraft.
1-2. SCOPE. This bulletin is applicable to all active US Army, US Army Reserve, and US Army National Guard
activities operating and/or maintaining US Army aircraft.
1-3. NONCOMPLIANCE PROVISION. In all cases whenever compliance with provisions of this bulletin cannot
be accomplished, the reasons will be forwarded to Commander, US Army Aviation and Missile Command, ATTN:
RDMR-AEP, 5400 Fowler Road, Redstone Arsenal, AL 35898-5000.
DEFINITIONS. For the purpose of this bulletin, the following deinitions will apply:
a. Army standard fuel. These are the Army designated primary fuels adopted for world-wide use. These will
be the only fuels which will be readily available in the Army supply system.
b. Alternate fuel. This is a fuel which can be used continuously when the Army standard fuel is not available,
without reduction of power output. Power setting adjustments and increased maintenance may be required when
an alternate, fuel is used.
c. Approved commercial fuels. Commercial fuels may be used when standard or alternate fuels are not avail-
able. Refer to applicable aircraft manuals for limitations.
d. Emergency fuel. This fuel may be used if the standard, alternate, and approved commercial fuels are not
available. Refer to applicable aircraft and engine manuals for operating limitations.
e. Engine manufacturer s recommended fuel. This is the fuel recommended by the engine manufacturer as
most suitable for use in a particular engine for maximum eficiency and longest engine life.
f. Draining. This is a procedure where oil luid (fuel, oil, hydraulic luid, etc.) in a reservoir or line is removed
by gravity low leaving residual amounts of old luid on the walls of the component.
g. Flushing and purging. This is a cleaning procedure whereby the old luid is irst drained and then com-
pletely removed from lines or reservoir by action of a solvent. The dry line or reservoir is then reilled with new luid,
drained to remove solvent, and then reilled with service luid. The oil-lubricated parts are then mechanically rotated,
if possible, to assure proper lubrication.
1-5. UNLISTED COMMERCIAL PRODUCTS. An effort has been made to list all known qualiied manufacturers
and their products. These products meet the requirements of the applicable Military Speciications. Equivalent
products of unlisted manufacturers may be used providing they meet the requirements of the applicable Military
Speciications as veriied by AMCOM. Code numbers for the identiication of fuels, lubricants and allied products
used by the NATO Armed Forces are listed in AR 70-20.
1-6. PACKAGED PRODUCTS. See MIL-STD-3004, Quality Surveillance For Fuels, Lubricants and Relate Prod-
ucts for standard information on all fuels and lubricants including storage, stock rotation and markings of petroleum