3-6 Scheduled Maintenance TP-5648 8/93
Fuel System
Specification
Use a clean, good quality No. 2-D (DIN 51 601) diesel
fuel oil. The fuel must meet the requirements of the
American Society of Testing and Materials (ASTM)
diesel fuel classification D975 (Federal Specification
W-F-800a). Cleanliness of the fuel is especially
important on diesel engines with precision fuel injectors
and pumps that are easily clogged. See chart below.
United States ASTM/D975 No. 2-D Diesel
United Kingdom BS2869 Class A1
Other Considerations:
Sulfur Content Less than 0.5%. . . . . . . . . . . . .
Sediment/Water Content Not to exceed 0.05%. . . . . .
Cetane Number 45 minimum. . . . . . . . . . . . .
Flash point At least 125_F (52_C). . . . . . . . . . . . . . . . .
NOTE
Never store diesel fuel in galvanized containers; diesel
fuel and the galvanized coating react chemically to
produce flaking which quickly clogs filters or causesthe
fuelpumporinjectorstofail.Donotrunthegeneratorset
out of fuel; air will be drawn into the fuel lines and the
entire system will have to be bled before the unit can be
restarted.
NOTE
Avoidstoring fueloverlongperiodsoftime. Takespecial
precautions to keep all dirt, water, and other
contaminants out of the fuel. Contaminating diesel fuel
storage tanks with water may cause the growth of
“microbes.” The presence of microbes forms a slime
that clogs fuel filters and lines.
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