Routine Preventive Maintenance
This section describes the items listed in the maintenance interval tables. The Daily
instructions apply to routine or daily starting of the engine. They do not apply to a
new engine or one that has been operated for a considerable period of time.
Monitoring the Lubricating Oil
Perform the following maintenance on the lubricating oil:
1. Check the oil level daily with the engine stopped and on a level surface. If
the engine has just been stopped and is warm, wait approximately 20 minutes
to allow the oil to drain back into the oil pan before checking.
NOTE:
the dipstick has a positive locking device such as a lever or twist-
lock design that must be disengaged before pulling the dipstick out of the
guide tube. Use a shop rag to wipe off the end of the dipstick. Wait 15
seconds to allow any crankcase pressure to dissipate through the guide
tube and let the oil level settle in the oil pan.
2. Add the proper grade of oil to maintain the correct level on the dipstick.
Remove the dipstick from the guide tube. Before adding lubricating oil, refer
to "How to Select Lubricating Oil."
NOTICE:
Do NOT fill beyond the maximum fill level on the dipstick, since
overfilling may result in high oil consumption and possible severe engine
damage.
NOTE:
If the engine operating temperature is below 60° C (140° F), the
engine must be on a level surface and then shut down for 60 minutes for an
accurate oil level reading. Otherwise, the engine must be brought up to an
operating temperature of 60° C (140° F), parked on a level surface and then
shut down for five minutes for an accurate oil level reading.
3. Reinstall the dipstick and make sure it is fully inserted into the guide tube.
Remove the dipstick and read the oil level dipstick.
NOTICE:
Do not add oil if the oil reading is in the crosshatch area on the
dipstick. There are approximately 5.0 L (5.2 qts) from the minimum mark to
the maximum mark on the dipstick. Overfilling the oil pan can cause engine
damage.
NOTICE:
If the oil level is constantly above normal and excess oil has not
been added to the crankcase, consult with an authorized Detroit service
outlet for the cause. Fuel or coolant dilution of lubricating oil can result in
serious engine damage.
Routine Preventive Maintenance
64
All information subject to change without notice.
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