TM 5-3805-281-24-1
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LUBRICITY OF DIESEL FUELS
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engine speed instability, hard starting, low power, and
Diesel fuel must have adequate lubricity to ensure
engine smoke.
proper operation and durability of fuel injection system
components.
Fuel lubricity should pass a minimum of 3100 gram
load level as measured by the SL BOCLE scuffing
Diesel fuels for highway use in the United States and
test.
Canada now require sulfur content less than 0.05%.
Diesel fuel in the European Union will require sulfur
A-A-52557, ASTM D975 and EN 590 specifications do
content less than 0.05% by 1 October 1996.
not require fuels to pass a fuel lubricity test.
Experience shows that some low sulfur diesel fuels
If fuel of low or unknown lubricity is used, add John
may have inadequate lubricity and their use may
Deere Premium Diesel Fuel Conditioner or Inhibitor,
reduce performance in fuel injection systems due to
Corrosion/Lubricity Improver, Fuel Soluble
inadequate lubrication of injection pump components.
(MIL-PRF-25017) at the recommended concentration.
The lower concentration of aromatic compounds in
John Deere Premium Diesel Fuel Conditioner is
these fuels also adversely affects injection pump seals
available in winter and summer formulas. Consult your
and may result in leaks.
John Deere engine distributor or servicing dealer for
more information.
Use of low lubricity diesel fuels may also cause
accelerated wear, injection nozzle erosion or corrosion,
CED,OUOE003,7684 1928OCT991/1
LOW SULFUR DIESEL FUEL CONDITIONER
When possible, use existing fuel formulations for engines
used off-highway. This fuel will not require any additives
However, many local fuel distributors will not carry both
low and regular sulfur diesel fuels.
If only low sulfur fuel is available, Inhibitor,
Corrosion/Lubricity Improver, Fuel Soluble
(MIL-PRF-25017) should be added at the recommended
concentration. Nearly all other diesel fuel conditioners only
improve cold weather flow and stabilize long-term fuel
storage. They do not contain the lubrication additives
needed by rotary fuel injection pumps.
CED,OUOE003,7685 1928OCT991/1