Dodge RAM TRUCK 1500 1995 Service Manual page 62

0 - 26 LUBRICATION AND MAINTENANCE
D I E S E L E N G I N E
INDEX
page
Air-Conditioner Compressor 29
Battery 28
Break-In Period
26
Engine Air Cleaner
28
Engine Cooling System 28
ENGINE OIL
WARNING: N E W OR U S E D ENGINE OIL CAN B E IR­
RITATING TO THE SKIN. AVOID P R O L O N G E D OR
R E P E A T E D SKIN CONTACT WITH ENGINE OIL.
CONTAMINANTS IN U S E D ENGINE OIL, C A U S E D B Y
INTERNAL COMBUSTION, CAN B E HAZARDOUS TO
YOUR HEALTH. THOROUGHLY W A S H E X P O S E D
SKIN WITH S O A P AND WATER.
DO NOT W A S H SKIN WITH GASOLINE, D I E S E L
F U E L , THINNER, OR S O L V E N T S , HEALTH P R O B ­
L E M S CAN RESULT.
DO NOT POLLUTE, D I S P O S E OF U S E D ENGINE
OIL P R O P E R L Y . CONTACT YOUR D E A L E R OR GOV­
ERNMENT A G E N C Y FOR LOCATION OF C O L L E C ­
TION C E N T E R IN YOUR A R E A . .
BREAK-IN PERIOD
Cummins diesel engines do not require a break-in
period due to its heavy duty construction. Normal op­
eration is allowed, provided the following recommen­
dations are followed:
• After first starting a new engine, allow it to idle
for 15 seconds before shifting into a drive gear.
• Drive the vehicle at varying speeds less than 88
km/h (55 mph) for the first 100 km (60 miles).
9 Avoid fast acceleration and sudden stops.
• Do not drive at constant speeds.
© Do not idle the engine excessively.
© Allow the engine to reach normal operating tem­
perature before applying full load.
A special break-in engine oil is not required. The
original engine oil installed is a high quality, energy
conserving lubricant. Special break-in oils are not
recommended. These oils could interfere with the
normal piston ring seating process.
New engines tend to consume more fuel and oil un­
til after the break-in period has ended.
ENGINE OIL SPECIFICATION
CAUTION: Do not use non-detergent or straight
mineral oil when adding or changing crankcase lu­
bricant. Engine failure can result.
page
Engine Oil
26
Engine Oil Filter 27
Exhaust System—Diesel
29
Rubber and Plastic Component Inspection . . . . . . .
29
The factory fill engine oil is a high quality, energy
conserving, crankcase lubricant. The Recommended
SAE Viscosity Grades chart defines the viscosity
grades that must be used based on temperature in
the region where vehicle is operated (Fig. 1). .
15W40
J9500-24
Fig. 1 Temperature/Engine Oil Viscosity
Use only oils conforming to API Quality CF-4 or
CE. These heavy duty diesel categories may be used
with other API non-diesel categories, such as SH or
SG. A sulfated ash limit is specified for lubrication oil
used in Cummins engines. Oils with a high ash con­
tent may produce deposits on valves that can
progress to guttering and valve burning. A maximum
sulfated ash content of 1.85 mass % is recommended
for all oil used in the engine.
CRANKCASE OIL LEVEL INSPECTION
CAUTION: Do not overfill crankcase with engine oil,
oil foaming and oil pressure loss can result.
Inspect engine oil level at every fuel fill. The oil
level should be in the safe range after the engine has
been shut off for 15 minutes. The oil is most accu­
rately checked on a cold engine.
(1) Position vehicle on level surface.
(2) With engine OFF, allow approximately 15 min­
utes for oil to settle to bottom of crankcase, remove
engine oil dipstick (Fig. 2).
(3) Wipe dipstick clean.
(4) Install dipstick and verify it is seated in the
tube.
(5) Remove dipstick, with handle held above the
tip, take oil level reading (Fig. 3).