Group 2: Aviation Kerosene Fuels
Following kerosene and jet fuel specifications are
acceptable alternative fuels, and may be used on a
contingency base for emergency or continuous use,
where standard diesel fuel is not available and where
legislation allows their use:
• “MIL-DTL-83133 NATO F34 (JP-8)”
• “MIL-DTL-83133 NATO F35”
• “MIL-DTL-5624 NATO F44 (JP-5)”
• “MIL-DTL-38219 (USAF) (JP7)”
• “NATO XF63”
• “ASTM D1655 JET A”
• “ASTM D1655 JET A1”
NOTICE
These fuels are only acceptable when used with ap-
propriate lubricity additive and must meet minimum
requirements that are listed in table 21 . The lubricity
of these fuels must not exceed wear scar diameter of
0.46 mm (0.01811 inch) as per “ISO 12156-1” . Refer
to “Lubricity”.
Note: Minimum cetane number of 40 is
recommended otherwise cold starting problems or
light load misfire might occur. Since jet fuel
specifications do not mention cetane requirements,
Perkins recommends that a fuel sample is taken to
determine the cetane number.
Note: Fuels must have minimum viscosity of 1.4 cSt
delivered to the fuel injection pump. Cooling of the
fuel may be required to maintain 1.4 cSt or greater
viscosity at the fuel injection pump. Perkins
recommends that the actual viscosity of the fuel, be
measured in order to determine if a fuel cooler is
needed. Refer to “Viscosity”.
Note: Rated power loss of up to 10 percent is
possible due to lower density and lower viscosity of
jet fuels compared to diesel fuels.
Biodiesel Fuel
Biodiesel is a fuel that can be defined as mono-alkyl
esters of fatty acids. Biodiesel is a fuel that can be
made from various feedstock. The most commonly
available biodiesel in Europe is Rape Methyl Ester
(REM). This biodiesel is derived from rapeseed oil.
Soy Methyl Ester (SME) is the most common
biodiesel in the United States. This biodiesel is
derived from soybean oil. Soybean oil or rapeseed oil
are the primary feedstocks. These fuels are together
known as Fatty Acid Methyl Esters (FAME).
Raw pressed vegetable oils are NOT acceptable for
use as a fuel in any concentration in compression
engines. Without esterification, these oils may gel in
the crankcase and the fuel tank. These fuels may not
be compatible with many of the elastomers that are
used in engines that are manufactured today. In
original forms, these oils are not suitable for use as a
fuel in compression engines. Alternate base stocks
for biodiesel may include animal tallow, waste
cooking oils, or various other feedstocks. In order to
use any of the products that are listed as fuel, the oil
must be esterified.
Fuel made of 100 percent FAME is generally referred
to as B100 biodiesel or neat biodiesel. Biodiesel can
be blended with distillate diesel fuel. Biodiesel blends
are denoted as "BXX" with "XX" representing the
content of neat biodiesel contained in the blend with
mineral diesel fuel. For example (B5, B10, and B20).
The most commonly available biodiesel blends are
B5, which is 5 percent biodiesel and 95 percent
distillate diesel fuel.
Note: The percentages given are volume-based. The
U.S. distillate diesel fuel specification “ASTM D975-
09a” includes up to B5 (5 percent) biodiesel.
European distillate diesel fuel specification
“EN590:2010” includes up B7 (7 percent) biodiesel.
Note: Engines that are manufactured by Perkins are
certified by use of the prescribed Environmental
Protection Agency (EPA) and European Certification
fuels. Perkins does not certify engines on any other
fuel. The user of the engine has the responsibility of
using the correct fuel that is recommended by the
manufacturer and allowed by the EPA and other
appropriate regulatory agencies.
Specification Requirements
The neat biodiesel must conform to “EN14214” or
“ASTM D6751” (in the USA). Specification and can
only be blended in mixture of up to 7% by volume in
acceptable distillate diesel fuel. Distillate diesel fuel
used for blending and the final biodiesel bled
produced must meet requirements in table 21 . Or the
latest edition of “EN590” or “ASTM D 975”
commercial standards.
Higher blend than B7 have not been released for
these engine models.
In North America biodiesel and biodiesel blends must
be purchased from the BQ-9000 accredited
producers and BQ-9000 certified distributors.
In other areas of the world, the use of biodiesel that is
BQ-9000 accredited and certified, or that is
accredited and certified by a comparable biodiesel
quality body to meet similar biodiesel quality
standards is required.
48 SEBU7833
Refill Capacities
Fluid Recommendations
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