Fuel Lubricity should pass a minimum of 3100
Consult your local fuel distributor for properties of the
gram load level as measured by the SL BOCLE
diesel fuel available in your area.
In general, diesel fuels are blended to satisfy the low
Sulfur content should not exceed 0.5% Sulfur
temperature requirements of the geographical area in
content less than 0.05% is preferred.
which they are marketed.
If diesel fuel with sulfur content greater than 0.5%
sulfur content is used, reduce the service interval
Diesel fuels specified to A-A-52557, EN 590 or ASTM
for engine oil and filter by 50%.
D975 are recommended.
DO NOT use diesel fuel with sulfur content greater
In all cases, the fuel shall meet the following
Bio-diesel fuels with properties and meeting DIN 51606
Cetane Number 40 minimum. Cetane number
or equivalent specifications may be used.
greater than 50 is preferred, especially for
temperatures below -20C (-4F) or elevations above
Aviation fuel Grade JP-8 may be used.
1500 m (5000 ft).
Cold Filter Plugging Point(CFPP) below the
DO NOT mix used engine oil or any other type of
lubricant with diesel fuel.
expected low temperature OR Cloud Point at least
5C (9F) below the expected low temperature.
LUBRICITY OF DIESEL FUELS
engine speed instability, hard starting, low power, and
Diesel fuel must have adequate lubricity to ensure
proper operation and durability of fuel injection system
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
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
reduce performance in fuel injection systems due to
Inhibitor, 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
these fuels also adversely affects injection pump seals
is available in winter and summer formulas. Consult
and may result in leaks.
your 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,