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Revision A
5.2
Fuel Specifications
Use only ultra low sulphur diesel (ULSD) from a reputable supplier. For most year-round service, No. 2 ULSD fuel
meeting ASTM specification D975 Grade S15 will provide good performance.
Table 5.2 Fuel Specification
Fuel
Specification
Sulphur
(by weight)
Water and
Sediment
(by volume)
Cetane No.
°C (°F)
Lubricity
ULSD Grade
No. 2
ASTM D975
0.5% maximum
0.05% maximum
40 (104) minimum
520 Microns
ULSD Grade
No. 1 and 2
mix
5
n/a
1% maximum
0.5% maximum
preferred
0.1% maximum
45
–
55 (113
–
130)
cold weather /
high altitude
460 Microns
In extreme situations, when available fuels are of poor quality or problems exist which are particular to certain
operations, additives can be used. However, the engine manufacturer recommends consultation with the fuel
supplier or engine manufacturer before using fuel additives. Situations where additives are useful include:
•
A cetane improver additive can be used with low cetane fuels.
•
A wax crystal modifier can help with fuels with high cold filter plugging points (CFPP).
•
An anti-icer can help prevent ice formation in wet fuel during cold weather.
•
An antioxidant or storage stability additive can help with fuel system deposits and poor storage stability.
•
Diesel fuel conditioner can be used to increase the lubricity of fuels so that they meet the requirements given in
Table
.
5.
Optional when operating temperature is below 0°C (32°F) .
