BEFORE YOU OPERATE
36
DIESEL FUEL
Diesel Fuel Specifications
Diesel fuel should comply with the following
specifications. The table lists several worldwide
specifications for diesel fuels.
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Additional technical fuel requirements
• When operating the engine in cold districts or
high altitudes, the fuel cetane number should be
equal to 45 or higher.
• The sulfur content must not exceed 15 ppm by
volume. A higher sulfur content fuel may
cause sulfuric acid corrosion in the cylinders
of the engines. Especially in U.S.A. and
Canada, Ultra Low Sulfur fuel must be used.
• Use the fuel that can be used where the
temperature is 12 °C (53.6 °F) lower than the
expected lowest temperature to prevent the fuel
from freezing.
• Bio-diesel fuels. See Bio-diesel fuels on page 37.
• Water and sediment in the fuel should not exceed
0.05 % by volume.
• Ash content not to exceed 0.01 % by volume.
• Carbon residue content not to exceed 0.35 % by
volume. Less than 0.1 % is preferred.
• Total aromatics content should not exceed 35 %
by volume. Less than 30 % is preferred.
• PAH (Polycyclic Aromatic Hydrocarbons) content
should be below 10 % by volume.
• Metal content of Mg, Si, and Al should be equal to
or lower than 1 mass ppm. (Test analysis method
JPI-5S-44-95)
• The diesel fuel should be free from Zn and Na.
• Lubricity: Wear mark of WS1.4 should be Max.
0.018 in. (460 µm) at HFRR test.
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Precautions and concerns regarding the
use of diesel fuel
• Never use kerosene.
• Never mix kerosene or used engine oil with the
diesel fuel.
• Never use residual fuels that cause diesel fuel
filter clogging and carbon deposits on the
nozzles.
• Never use fuels stored for long time in a drum can
or the like.
• Never keep fuel in containers with zinc plating on
the inside.
• Never use fuels purchased from unauthorized
dealer.
• Fuel additives are not recommended. Some fuel
additives may cause poor engine performance.
Consult your Isuzu representative for more
information.
Diesel fuel specification
Location
ASTM D975
No. 1D S15
No. 2D S15
USA
EN590:96
European Union
ISO 8217 DMX
International
BS 2869-A1 or A2
United Kingdom
JIS K2204 Grade No. 2
Japan
KSM-2610
Korea
GB252
China
TNV_OperationManual_T4(under 19kW).book Page 36 Wednesday, June 17, 2015 11:23 AM