Coolant Specifications; Fuel Specifications - Dodge D250 1990 Service Manual

Specifications
Page9L-10
Base Engine Components
DODGETurbo Diesel
Coolant Specifications
Use antifreeze during all seasons to protect the engine cooling system from corrosion as well as freezing damage.
The antifreeze should be changed every two years.
A mixture of 50% water and 50% ethylene-glycol base antifreeze is required for operation of the engine in
temperature environments above -37°C [-34°F]. A mixture of 40% water and 60% antifreeze is recommended for
temperatures below -37°C [-34°F].
Note; In Tropical climates where antifreeze availability may be limited, use a corrosion inhibitor (Cummins liquid
DCA) or equivalent to protect the engine cooling system.
Fuel Specifications
The Cummins Turbo Diesel engine has been developed to take advantage of the high energy content and generally
lower cost No. 2 Diesel Fuels. Experience has shown that it also operates satisfactorily on No. 1 Diesel Fuels or
other fuels within the following specifications.
Fuel Property
Specification Lab Test Method
Viscosity (ASTMD-445) 1.3 to 5.8 CentiStroke [1.3 to 5.8 mm
2
per Second] at 40°C [104°F]
Cetane Number (ASTMD-613)
40 Minimum except in cold weather or in service with prolonged
low loads, a higher cetane number is desirable.
Sulfur Content (ASTM D-129 or 1552)
Not to exceed 1 % by weight.
Water and Sediment (ASTM D-1796)
Not to exceed 1 % by weight.
Carbon Residue (Ramsbottom
ASTMD-524or189) Not to exceed 1% by weight on 10% residue.
Flash Point
(ASTMD-93)
52°C [125°F] Minimum. Certain marine
registries require higher flash points.
Density
(ASTMD-287)
-1 to 6°C [30 to 42°F] A.P.I. at 16°C [60°F] 0.816 to 0.876 Sp. Gr.
Cloud Point (ASTM D-97) -12°C [10°F] below lowest temperature expected to operate at.
Active Sulfur Copper
Strip Corrosion (ASTMD-130)
Not to exceed No. 2 rating after 3 hours at 50°C [122°FJ.
Ash (ASTMD-482)
Not to exceed 0.02% by weight.
Distillation (ASTM D-86) ............. The distillation curve should be smooth and continuous. At least 90% (ASTM D-86) .............
of the fuel should evaporate at less than 360°C [680°F]. All of the
fuel should evaporate at less than 385°C [725°F].
*No. 1 Diesel Fuel should be used only where extended arctic conditions -23° [-10°F] exist.