Cadillac 2016 Escalade Manual page 337

336 Service and Maintenance
front/rear axle output seals. High
pressure water can overcome
the seals and contaminate the
fluid. Contaminated fluid will
decrease the life of the transfer
case and/or drive axles and
should be replaced.
Every 240 000 km/150,000 Miles
Engine cooling system drain and
refill (or every five years,
whichever occurs first). See
Cooling System 0 267. An
Emission Control Service.
Engine drive belts inspection for
fraying, excessive cracks,
or obvious damage (or every
10 years, whichever occurs
first). Replace, if needed.
Severe Conditions Requiring
More Frequent Maintenance*
Public service, military,
or commercial use vehicles to
include the following:
Ambulances, police cars and
emergency rescue vehicles.
Civilian vehicles such as light
duty pick-up trucks, SUVs and
passenger cars that are used
in military applications.
Recovery vehicles such as
tow trucks and flatbed single
vehicle carriers or any vehicle
that is consistently used in
towing trailers or other loads.
High use commercial vehicles
such as courier delivery
vehicles, private security patrol
vehicles or any vehicles that
operate on a 24 hour basis.
Any vehicle consistently
operated in a high sand or
dust environment such as
those used on oil pipelines
and similar applications.
Vehicles that are regularly used
for short trips of 6 kilometers
or less
If your vehicle has an Oil Life
Indicator, the indicator will show
you when to change the oil and
filter. Under severe conditions
the indicator may come on
before 10 000 km/6,000 mi. The
indicator won't detect dust in the
oil, so if you drive in a dusty
area you may have to change
the oil and filter sooner than
every 10 000 km/6,000 mi.
Note: All vehicles with
rear-wheel drive change
driveline axle oil every
30 000 km/19,000 mi if vehicle is
used for towing purposes.
* Footnote: Under extreme
driving conditions listed above, it
may be necessary to replace
your spark plugs at more
frequent intervals. For further
assistance in determining the
most suitable service
maintenance intervals for your
vehicle, please contact your
authorized GM Dealer.