2017 CADILLAC XTS oil additives

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
DRIVING AND OPERATING 213
Caution
Do not use fuels with any of the
following conditions; doing so may
damage the vehicle and void its
warranty:. Fuel with any amount of
methanol, methylal, and
aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
. Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control system
and spark plugs.
. Fuel with a posted octane
rating of less than the
recommended fuel. Using this
fuel will lower fuel economy
and performance, and may
decrease the life of the
emissions catalyst.
Fuel Additives
Gasoline should contain detergent
additives that help prevent engine and
fuel system deposits from forming.
Clean fuel injectors and intake valves
will allow the emission control system
to work properly. Some gasoline does
not contain sufficient quantities of
additives to keep fuel injectors and
intake valves clean. To make up for
this lack of detergency, consult your
dealer for the GM approved additive
treatment. Add this additive to the
fuel tank at every engine oil change or
every 15 000 km (9,000 mi), whichever
occurs first.
Filling the Tank
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
(Continued)
Warning (Continued)
.To help avoid injuries to you
and others, read and follow
all the instructions on the
fuel pump island.
. Turn off the engine when
refueling.
. Keep sparks, flames, and
smoking materials away
from fuel.
. Do not leave the fuel pump
unattended.
. Do not use a cell phone while
refueling.
. Do not reenter the vehicle
while pumping fuel.
. Keep children away from the
fuel pump and never let
children pump fuel.
. Fuel can spray out if the
refueling nozzle is inserted
too quickly. This spray can
happen if the tank is nearly
full, and is more likely in hot
(Continued)

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
230 VEHICLE CARE
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 dexos1
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.
When the system has calculated that
oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE OIL
SOON message comes on. See
Engine
Oil Messages 0137. Change the oil as
soon as possible within the next
1 000 km (600 mi). It is possible that,
if driving under the best conditions,
the oil life system might indicate that
an oil change is not necessary for up
to a year. The engine oil and filter
must be changed at least once a year
and at this time 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.
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.

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
VEHICLE CARE 235
Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack engine
cooling parts. The repairs would not
be covered by the vehicle warranty.
Use only the proper mixture of
engine coolant for the cooling
system. SeeRecommended Fluids
and Lubricants 0295.
Never dispose of engine coolant by
putting it in the trash, pouring it on
the ground, or pouring into sewers,
streams, or bodies of water. Have the
coolant changed by an authorized
service center, familiar with legal
requirements regarding used coolant
disposal. This will help protect the
environment and your health.
Checking Coolant
The vehicle must be on a level surface
when checking the coolant level. The engine coolant surge tank and
CAC bottle are in the engine
compartment on the driver side of the
vehicle. See
Engine Compartment
Overview 0224.
Check to see if coolant is visible in the
surge tank and CAC bottle. If the
coolant inside the surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible but
the coolant level is not at or above the
mark pointed to on the surge tank or
at the CAC bottle COLD FILL mark,
add a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant.
Be sure the cooling system is cool
before this is done.
If no coolant is visible in the coolant
surge tank or CAC bottle, add coolant
as follows:
How to Add Coolant to the
Surge Tank
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill coolant
on a hot engine.
Caution
This vehicle has a specific coolant
fill procedure. Failure to follow this
procedure could cause the engine to
overheat and be severely damaged.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. Never turn the
cap when the cooling system, (Continued)

Cadillac XTS Owner Manual (GMNA-Localizing-MidEast-10292881) - 2017 -
crc - 7/1/16
INDEX 307
Engine (cont'd)Oil Pressure Light . . . . . . . . . . . . . . . . . 126
Overheated Protection
Operating Mode . . . . . . . . . . . . . . . . . 238
Overheating . . . . . . . . . . . . . . . . . . . . . . . 237
Power Messages . . . . . . . . . . . . . . . . . . 137
Running While Parked . . . . . . . . . . . 182
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . 156
Equipment, Towing . . . . . . . . . . . . . . . . . 219
Event Data Recorders . . . . . . . . . . . . . . 302
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . 157
Exterior Lamp Controls . . . . . . . . . . . . 151
Exterior Lamps Off Reminder . . . . . . 152
Exterior Lighting Battery Saver . . . . 157
F
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . 231
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . 153
Flashers, Hazard Warning . . . . . . . . . . 154
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Fluid Automatic Transmission . . . . . . . . . 231
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 Fluid (cont'd)
Power Steering . . . . . . . . . . . . . . . . . . . . 238
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . 42
Forward Automatic Braking . . . . . . . . 208
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Front Seats Heated and Ventilated . . . . . . . . . . . . . 58
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Economy Driving . . . . . . . . . . . . . . . . . . . 24
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . . . . . . 215
Filling the Tank . . . . . . . . . . . . . . . . . . . 213
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Low Fuel Warning Light . . . . . . . . . 126
System Messages . . . . . . . . . . . . . . . . . 137
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Fuses and Circuit Breakers . . . . . . . 248
Instrument Panel Fuse Block . . . . 251
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
G
GaugesEngine Coolant Temperature . . . . 117
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Speedometer . . . . . . . . . . . . . . . . . . . . . . 115
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 116
Trip Odometer . . . . . . . . . . . . . . . . . . . . 116
Warning Lights andIndicators . . . . . . . . . . . . . . . . . . . . . . . . 111
General Information Service and Maintenance . . . . . . . . 287
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . 222
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
H
Hazard Warning Flashers . . . . . . . . . . 154
Head Restraints . . . . . . . . . . . . . . . . . . . . . . 50
Head-up Display . . . . . . . . . . . . . . . . . . . . 131
Headlamps Adaptive ForwardLighting (AFL) . . . . . . . . . . . . . . . . . . . 154
Aiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 153
Bulb Replacement . . . . . . . . . . . . . . . . 245
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . . . 153
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . 153