Lubricating Oil Viscosity Recommendations; Lubricating Oil, Arctic Operation; Lubrication System Specifications - Dodge D250 1990 Service Manual

Rear wheel drive ram truck, diesel supplement
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Engine Lubricating System
Page9B-32
Lubricating Oil Viscosity Recommendations
Base Engine Components
DODGE Turbo Diesel
Use a multi-graded* oil, with the viscosity grades shown below, in the Cummins Turbo Diesel Engine. The use of
single grade lubricating oil is not recommended.
- 1 2 ° C
-18°C
t.
5W40
T
10W30
0»F
1
•23°C
(it)
- 1 0 ° F
With
Block
10W30
Heater
W i t h o u t
B l o c k H e a t e r
S y n t h e t i c O i l * *
5W30
Notes:
*
20W20 is not considered a multi-grade oil.
* *
The same oil change Interval is to be followed
for synthetic oil as for petroleum based oil.
Also, synthetic oil must meet the same performance
specifications as petroleum oil.
Lubricating Oil, Arctic Operation
Where there are no provisions to keep the engine warm when it is operating in ambient temperatures consistently
below -23°C [-10°F], use a lubricating oil that meets the following requirements.
S A E 5W30 viscosity grade synthetic oils may be used provided they meet the minimum viscosity at 100°C
[212°F].
Parameter T e s t Method
Specifications
Performance Quality
API Classification C E - S G , C E - S F , C D - S F , or C C / C D - S F
Viscosity
10,000mPa°s Maximum at -35°C [-31 °F]
4.1mm2/s Minimum at 100°C [212°F]
Pour Point (ASTM D-97
Minimum of 5 ° C [9°F] Below the
Lowest Expected Ambient Temperature
Sulfated Ash Content (ASTM D-874)
Maximum of 1.85% by Weight Maximum
Lubrication System Specifications - Dodge Ram 5.9 Liter Diesei
Oil Pressure at Idle - (Minimum Allowable) kPa [PSI]
69 [10]
Oil Pressure at Rated - (Minimum Allowable) kPa [PSI]
207 [30]
Oil Pressure at Rated - (Maximum Allowable) kPa [PSI]
483170]
Regulating Valve Opening Pressure kPa [PSI]
414 [60]
Differential Pressure to Open the Filter Bypass Valve - kPa [PSI]
138 [20]
OH Capacity of Pan - Liter [U.S. Quarts] High Mark
10.5 [11]
Oil Capacity of Pan - Liter [U.S. Quarts] L o w Mark
8.6 [9]
OH Capacity of Oil Filter - Liter [U.S. Quarts]
95 [1 ]

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