Engine Oil Life System - Cadillac XT4 2023 Owner's Manual

262 Vehicle Care
When selecting an oil of the appropriate
viscosity grade, it is recommended to select
an oil of the correct specification. See
Specification earlier in this section.
Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The
recommended oils meeting the dexos
specification are all that is needed for good
performance and engine protection.
Engine oil system flushes are not
recommended and could cause engine
damage not covered by the vehicle
warranty.
What to Do with Used Oil
Used engine oil contains certain elements
that can be unhealthy for your skin and
could even cause cancer. Do not let used oil
stay on your skin for very long. Clean your
skin and nails with soap and water, or a
good hand cleaner. Wash or properly
dispose of clothing or rags containing used
engine oil. See the manufacturer's warnings
about the use and disposal of oil products.
Used oil can be a threat to the environment.
If you change your own oil, be sure to drain
all the oil from the filter before disposal.
Never dispose of oil by putting it in the
trash or pouring it on the ground, into
sewers, or into streams or bodies of water.
Recycle it by taking it to a place that
collects used oil.

Engine Oil Life System

When to Change Engine Oil
This vehicle has a computer system that
indicates when to change the engine oil and
filter. This is based on a combination of
factors which include engine revolutions,
engine temperature, and miles driven. Based
on driving conditions, the mileage at which
an oil change is indicated can vary
considerably. For the oil life system to work
properly, the system must be reset every
time the oil is changed.
2.0L Turbo Petrol Engine
Change engine oil and filter when indicated
by the Engine Oil Life System, or at 15
000 km (9,300 mi), or at one year,
whichever comes first. When the CHANGE
ENGINE OIL SOON message displays, have
the engine oil and filter changed within the
next 1 000 km (600 mi). The system must
be reset. Your dealer has trained service
people who will perform this work and reset
the system. It is also important to check the
oil regularly over the course of an oil drain
interval and keep it at the proper level.
2.0L Turbo Diesel Engine
Change engine oil and filter when indicated
by the Engine Oil Life System, or at 30
000 km (18,640 mi), or after one year,
whichever comes first. (15 000 km
(9,320 mi) or after 6 months in severe
driving conditions). When the CHANGE
ENGINE OIL SOON message displays, have
the engine oil and filter changed within the
next 1 000 km (600 mi). The system must
be reset. Your dealer has trained service
people who will perform this work and reset
the system. It is also important to check the
oil regularly over the course of an oil drain
interval and keep it at the proper level.
Resetting the Oil Life System
After you change the oil, the oil life system
will need to be reset. See your dealer for
service.
If the system is ever reset accidentally, the
oil must be changed at 5 000 km (3,000 mi)
since the last oil change. Remember to reset
the oil life system whenever the oil is
changed.