5.2. Fuel System
5.2.1. Fuel
If Diesel fuel which contains moisture is used the injection system and the cylinder liners /
pistons will be damaged. This can be prevented to same extent by filling the tank as soon as
the engine is switched off while the fuel tank is still warm (formation of condensation is
prevented). Drain moisture from storage tanks regularly. Installation of a water trap upstream
of the fuel filter is also advisable.
<Fuel Oil Selection Chart>
#) Not specified In ASTM D 975
+) Differs from ASTM D 975
Note : 1. The cloud point should be -12
˚C
(10
˚F
) below the lowest expected fuel temperature
to prevent clogging of fuel fitters by crystals.
- 28 -
General Fuel
ASTM
No. 1
No. 2
DIN 51601
Classification
Test
ASTM 1-D
ASTM 2-D
Gravity,
˚
API
#)
D 287
40 ~ 44
33 ~ 37
0.815 ~ 0.855
Flash Point
D 93
100 (38)
125 (52)
131 (55)
Min.
˚F (˚C
)
Viscosity, Kinematic
D 445
1.3 ~ 2.4
1.9 ~ 4.1
1.8 ~ 10
cST 100
˚F
(40
˚C
)
Cloud Point
˚F
#)
D 2500
See Note 1)
See Note 1)
See Note 1)
Sulfur Content
D 129
0.5
0.5
0.15
wt%, Max.
Carbon Residue
D 524
0.15
0.35
0.1
on 10%, wt%, Max.
Accelerated Stability
D 2274
1.5
1.5
Total Insolubles
mg/100 ml, Max.
#)
Ash, wt%, Max.
D 482
0.01
0.01
Cetane Number, Min.
+)
D 613
45
45
> 45
Distillation
D 86
Temperature,
˚F (˚C
)
IMP, Typican
#)
350(177)
375(191)
10% Typical
#)
385(196)
430(221)
50% Typical
#)
45(218)
510(256)
680(360)
90%
+)
500 (260) Max.
625(329) Max.
End Point
#)
550(288) Max.
675(357) Max.
Water & Sediment
D 1796
0.05
0.05
0.05
%, Max.
