Fully formulated products contain SCA and are required
to protect the cooling system from fouling, solder blooming
and general corrosion. The cooling filter is required to pro-
tect the coolant system from abrasive materials, debris and
precipitated coolant additives.
Supplement coolant additives, or equivalent, are used to
prevent liner pitting, corrosion and scale deposits in the
cooling system. Use the correct Fleetguard coolant filter to
maintain the recommended SCA concentration in the sys-
tem. Maintain the correct concentration by changing the
service filter at each oil drain interval.
NOTE: The correct filter is determined by the total cooling system
capacity and oil drain interval. Refer to the Coolant Capacity
Specifications in this section.
CAUTION: Insufficient concentration of the coolant additives will
result in liner pitting and engine failure. The SCA concentration must
not fall below 1.2 units or exceed 3 units per gallon of cooling system
capacity.
Use the correct Fleetguard coolant filter to maintain the recommended
SCA concentration in the system. Maintain the correct concentration by
changing the service coolant filter at each oil drain interval. The oil pres-
sure gauge, temperature gauge, warning lamps and other safety lamps
should be checked daily to ensure proper operations.
NOTE: The correct filter is determined by the total cooling system
capacity. If you have any questions refer to the Cummins manual.
The engine does not require a “break-in” procedure.
Low sulphur #2 diesel fuel or #1 and #2 commercial winter blend diesel
fuels are the most common commercially available and recommended for
use. The Cummins Engine Company Inc. recommends the use ASTM #2D
fuel. The use of #2 diesel fuel will result in optimum engine performance.
WARNING: Do not mix gasohol with diesel fuel. This mixture can
cause an explosion.
NOTE: Due to the precise tolerances of diesel injection systems, it is
extremely important that fuel be kept clean and free of dirt or water.
Dirt or water in the system can cause severe damage to both the fuel
pump and the fuel injector. Fuel additives for lubricity are not recom-
mended. There are numerous diesel fuel additives to help remove mois-
ture from fuel, prevent microbe growth and to prevent freeze-up dur-
ing cold weather. Any fuel additives product should show supporting
data for performance and benefits. Engine failures caused by incorrect
fuel are not covered under warranty.
Chassis Information
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S I G N A T U R E
1 0 • 2 8 9
FUEL
REQUIREMENTS
Coolant - Additive (SCA)
Summary of Contents for SIGNATURE 2001 series
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