Tractor Specification
MF 533/543/563 - Issue 1
1B-17
4
FUEL SPECIFICATIONS
Limiting requirements for diesel fuel oils
1. To meet special operating conditions, modifications of individual limiting requirements may be agreed upon between
purchaser, seller and manufacturer.
2. For cold weather operation, the pour point should be specified 10ºF below the ambient temperature at which the
engine is to be operated except where fuel oil heating facilities are provided.
3. When pour point less than 0ºF is specified, the minimum viscosity shall be 1.8 cSt (32.0 SUS) and the minimum 90
percent shall be waived.
4. In Countries outside the U.S.A., other sulphur limits may apply.
5. Where Cetane number by Method D 613 is not available, ASTM Method D 976 Calculated Cetane Index of Distillate
Fuels 2 may be used as an approximation. Where there is disagreement, Method D 613 shall be the referee method.
6. Low atmospheric temperatures as well as engine operation at high altitudes may require use of fuels with higher
cetane ratings.
NOTE:
Diesel fuels are classified as either No 1 (No 1-D) or No 2 (No 2-D) fuel. The grade No 1 fuel is recommended for
service when the air temperature is below 32ºF. The grade No 2 fuel, which will produce more work per gallon, is
recommended for service when the air temperature is 32ºF, or above. See chart for fuel requirements.
