For additional information on when to change
engine oil for gasoline engines or DURAMAX
®
diesel engines, see Engine Oil (Caterpillar
®
Diesel
Engine) on page 264 or Engine Oil (Gasoline
Engine) on page 265 or Engine Oil (DURAMAX
®
/
Isuzu Diesel Engine) on page 268 and Scheduled
Maintenance on page 363. To reset the change
engine oil light, see Engine Oil Life System
(Gasoline Engine) on page 272 or Engine Oil Life
System (DURAMAX
®
Diesel) on page 274 or
Engine Oil Life System (Caterpillar
®
Diesel Engine)
on page 276.
Engine Overspeed Warning Light
If your vehicle has this
light, it will come on if
your engine is operating
at too many revolutions
per minute (rpm).
It will also come on for a moment as a check
when you start your engine.
If it comes on when you’re driving, reduce your
engine speed immediately.
Engine Shutdown Warning Light
If your vehicle has the
engine shutdown
feature, this light will
come on when engine
shutdown is active.
For more information, see Engine Alarm and
Automatic Shutdown under Starting the Diesel
Engine on page 98.
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