Dodge B-I-B 1948 - ABNORMAL CONDITIONS; CHECKING OIL LEVEL

ABNORMAL CONDITIONS
WINTER DRIVING-If the truck is driven for short distances of only a
few miles at a time and at low speeds, or is engaged in frequent
stops or door-to-door delivery type of service, moisture wi" con-
dense in the
oil pan and form a sludge, which may freeze and clog
the oil inlet screen. Under conditions of this kind the engine does
not become sufficiently warm to expel the condensation through the
crankcase
ventilating system and the engine oil should be changed
approximately every 500 miles-under extreme conditions more
often may be necessary .
This
sludging condition can be corrected to a large degree by
the use of various equipment, which tends to increase the engine
temperature rapidly, such as 180
0
thermostats, winterfronts, etc.
Note: When using 1 80
0
thermostats it is necessary to use a per-
manent type of anti - freeze to prevent boiling away.
As an alternative to this frequent change period or use of special
equipment, an occasional drive of 30 miles or more at higher
speeds will do much toward expelling the condensation through the
crankcase ventilating system. If these longer drives are made fre-
quently, the change period may be extended to the normally rec-
ommended winter change .
DUSTY CONDITIONS-Driving over dusty roads or through dust
storms introduces
abrasive material into the engine. If the air clean-
ers are kept in good condition, they will decrease the amount of
dust entering the crank chamber. However, if the engine oil becomes
contaminated with dust or dirt the oil pan should be promptly
drained, flushed out and refl"ed with new oil of the prope.r grade
to prevent harmful engine wear. The frequency of draining · depends
upon the severity of the dust conditions, therefore, no definite drain-
ing periods can be recommended.
CHECKING OIL LEVEL
Each time you stop for fuel the oil level should be checked. The oil
level indicator is marked at " FULL " and "ADD OIL." The " FULL "
mark shows the proper level of oil after the engine has been stand-
ing for a few hours. As soon as the engine has started running, the
level wi" drop somewhat, due to the fI"ing of oil passages and
the filter.
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