INJECTION PUMP
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 5D-7
Fuel Ratings
WARNING
Under no circumstances should gasoline be mixed with diesel fuel for any reason. This
mixture of gasoline and diesel fuel is highly flammable and produces a significant risk
to the user.
IMPORTANT: Use of improper or water contaminated diesel fuel can damage the
engine seriously. Use of improper fuel is considered misuse of engine, and damage
caused thereby will not be covered by warranty.
Grade 2-D diesel fuel is required, meeting ASTM Standards D975 (or fuel rated Diesel DIN
51601), and having a minimum cetane rating of 45.
The Cetane number is a measure of the ignition quality of diesel fuel. Increasing the cetane
number will not improve overall engine performance, but it may be necessary to raise the
cetane rating for low temperature, or high altitude use.
Sulphur content of the above fuel is rated at 0.50% by weight, maximum (ASTM). Limits may
vary in countries outside of the United States.
On intermittent use engines, high sulphur content diesel fuel will greatly increase:
• Corrosion of metal parts.
• Deterioration of elastomer and plastic parts.
• Corrosion and extensive damage, and excessive wear of internal engine parts,
particularly bearings.
• Starting and operating difficulties.
Diesel Fuel in Cold Weather
WARNING
Under no circumstances should gasoline be mixed with diesel fuel for any reason. This
mixture of gasoline and diesel fuel is highly flammable and produces a significant risk
to the user.
Unaltered diesel fuels thicken and gel in cold temperatures, unless treated. Virtually all
diesel fuels are climatized to allow their use in the particular region for that time of the year.
If it becomes necessary to further treat diesel fuel, it is the owner/operator’s responsibility
to add a commercial standard brand anti-gel diesel fuel additive, following that product’s
directions.
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