2019 CADILLAC CTS engine oil

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
VEHICLE CARE 257
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 258
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 258
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 259
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 259
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 259
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 261
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 268
Engine Oil Life System . . . . . . . . . . . 271
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Engine Air Cleaner/Filter . . . . . . . . . 272
Cooling System . . . . . . . . . . . . . . . . . . . 274
Engine Overheating . . . . . . . . . . . . . . 279
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 280
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 282
Battery - North America . . . . . . . . . 283
All-Wheel Drive . . . . . . . . . . . . . . . . . . 284 Starter Switch Check . . . . . . . . . . . . . 285
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 286
Wiper Blade Replacement . . . . . . . 286
Windshield Replacement . . . . . . . . 287
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 287
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . . . . . . . 288
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . 289
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . 289
High Intensity Discharge (HID) Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 289
LED Lighting . . . . . . . . . . . . . . . . . . . . . 289
Back-Up Lamps . . . . . . . . . . . . . . . . . . . 289
License Plate Lamp . . . . . . . . . . . . . . 290
Electrical System
Electrical System Overload . . . . . . 291
Fuses and Circuit Breakers . . . . . . 291
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Instrument Panel Fuse Block . . . . 295
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
All-Season Tires . . . . . . . . . . . . . . . . . . 301
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 301
Run-Flat Tires . . . . . . . . . . . . . . . . . . . . 301
Low-Profile Tires . . . . . . . . . . . . . . . . . 302
Summer Tires . . . . . . . . . . . . . . . . . . . . 302
Tire Sidewall Labeling . . . . . . . . . . . 303
Tire Designations . . . . . . . . . . . . . . . . . 304
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . . . . . . . 305
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 307
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 308
Tire Pressure Monitor System . . . 309
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 310
Tire Inspection . . . . . . . . . . . . . . . . . . . 313
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 313
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Buying New Tires . . . . . . . . . . . . . . . . 315
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Uniform Tire Quality Grading . . . 317
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Wheel Replacement . . . . . . . . . . . . . . 319
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 319
If a Tire Goes Flat . . . . . . . . . . . . . . . . 320

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
262 VEHICLE CARE
1. Windshield Washer FluidReservoir. See Washer Fluid
0 280.
2. Remote Positive (+) Battery Terminal. See Jump Starting -
North America 0329.
3. Engine Compartment Fuse Block
0292. 4. Engine Coolant Surge Tank and
Pressure Cap. See Cooling System
0 274.
5. Remote Negative (-) Battery Terminal. See Jump Starting -
North America 0329.
6. Engine Oil Fill Cap. See Engine Oil
0 268. 7. Engine Cooling Fan (Out of
View). See Cooling System 0274.
8. Engine Oil Dipstick. See Engine
Oil 0268.
9. Engine Air Cleaner/Filter 0272.
10. Brake Fluid Reservoir. See Brake
Fluid 0282.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
264 VEHICLE CARE
1. Windshield Washer FluidReservoir. See Washer Fluid
0 280.
2. Remote Positive (+) Battery Terminal. See Jump Starting -
North America 0329.
3. Remote Negative (-) Battery Terminal. See Jump Starting -
North America 0329. 4. Engine Coolant Surge Tank and
Pressure Cap. See Cooling System
0 274.
5. Engine Compartment Fuse Block
0292.
6. Engine Cooling Fan (Out of View). See Cooling System 0274. 7. Engine Oil Fill Cap. See
Engine Oil
0 268.
8. Engine Oil Dipstick. See Engine
Oil 0268.
9. Brake Fluid Reservoir. See Brake
Fluid 0282.
10. Engine Air Cleaner/Filter 0272.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
266 VEHICLE CARE
1. Windshield Washer FluidReservoir. See Washer Fluid
0 280.
2. Remote Positive (+) Battery Terminal. See Jump Starting -
North America 0329.
3. Engine Compartment Fuse Block
0292. 4. Engine Coolant Surge Tank and
Pressure Cap. See Cooling System
0 274.
5. Remote Negative (-) Battery Terminal. See Jump Starting -
North America 0329.
6. Engine Cooling Fan (Out of View). See Cooling System 0274. 7. Engine Oil Fill Cap. See
Engine Oil
0 268.
8. Engine Oil Dipstick. See Engine
Oil 0268.
9. Engine Air Cleaner/Filter 0272.
10. Brake Fluid Reservoir. See Brake
Fluid 0282.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
268 VEHICLE CARE
1. Windshield Washer FluidReservoir. See Washer Fluid
0 280.
2. Remote Positive (+) Battery Terminal. See Jump Starting -
North America 0329.
3. Engine Compartment Fuse Block
0292.
4. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 274.
5. Remote Negative (-) Battery Terminal. See Jump Starting -
North America 0329.
6. Engine Oil Dipstick. See Engine
Oil 0268.
7. Engine Cooling Fan (Out of View). See Cooling System 0274.
8. Engine Oil Fill Cap (Out of View). See Engine Oil 0268.
9. Engine Air Cleaner/Filter 0272.
10. Brake Fluid Reservoir. See Brake
Fluid 0282.Engine Oil
To ensure proper engine performance
and long life, careful attention must
be paid to engine oil. Following these
simple, but important steps will help
protect your investment:
.
Use engine oil approved to the
proper specification and of the
proper viscosity grade. See
“Selecting the Right Engine Oil” in
this section.
. Check the engine oil level regularly
and maintain the proper oil level.
See “Checking Engine Oil” and
“When to Add Engine Oil” in this
section.
. Change the engine oil at the
appropriate time. See Engine Oil
Life System 0271.
. Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.
Checking Engine Oil
Check the engine oil level regularly,
every 650 km (400 mi), especially prior
to a long trip. The engine oil dipstick handle is a loop. See
Engine
Compartment Overview 0261 for the
location.
{Warning
The engine oil dipstick handle may
be hot; it could burn you. Use a
towel or glove to touch the dipstick
handle.
If a low oil Driver Information Center
(DIC) message displays, check the oil
level.
Follow these guidelines:
. To get an accurate reading, park
the vehicle on level ground. Check
the engine oil level after the
engine has been off for at least
two hours. Checking the engine oil
level on steep grades or too soon
after engine shutoff can result in
incorrect readings. Accuracy
improves when checking a cold
engine prior to starting. Remove
the dipstick and check the level.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
VEHICLE CARE 269
.If unable to wait two hours, the
engine must be off for at least
15 minutes if the engine is warm,
or at least 30 minutes if the
engine is not warm. Pull out the
dipstick, wipe it with a clean paper
towel or cloth, then push it back
in all the way. Remove it again,
keeping the tip down, and check
the level.
When to Add Engine Oil
2.0L L4 Turbo (LTG)
3.6L V6 Twin Turbo (LF3)
3.6L V6 (LGX) Shown, 6.2L V8 (LT4)
Similar
If the oil is below the cross-hatched
area at the tip of the dipstick and the
engine has been off for at least
15 minutes, add 1 L (1 qt) of the
recommended oil and then recheck
the level. See “Selecting the Right
Engine Oil” later in this section for an
explanation of what kind of oil to use.
For engine oil crankcase capacity, see
Capacities and Specifications 0359.
Caution
Do not add too much oil. Oil levels
above or below the acceptable
operating range shown on the
dipstick are harmful to the engine.
If the oil level is above the
operating range (i.e., the engine has
(Continued)
Caution (Continued)
so much oil that the oil level gets
above the cross-hatched area that
shows the proper operating range),
the engine could be damaged. Drain
the excess oil or limit driving of the
vehicle, and seek a service
professional to remove the
excess oil.
See Engine Compartment Overview
0 261 for the location of the engine oil
fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.
Selecting the Right Engine Oil
(Except 6.2L (LT4) V8 Engine)
Selecting the right engine oil depends
on both the proper oil specification
and viscosity grade. See Recommended
Fluids and Lubricants 0354.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
270 VEHICLE CARE
Specification
Use full synthetic engine oils that
meet the dexos1 specification. Engine
oils that have been approved by GM
as meeting the dexos1 specification
are marked with the dexos1 approved
logo. See www.gmdexos.com.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
Use SAE 5W-30 viscosity grade
engine oil. 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.
Selecting the Right Engine Oil
(6.2L (LT4) V8 Engine)
Selecting the right engine oil depends
on both the proper oil specification
and viscosity grade. See Recommended
Fluids and Lubricants 0354.
Specification
Use engine oils that meet the dexos2
specification. Engine oils that have
been approved by GM as meeting the
dexos2 specification are marked with
the dexos2 approved logo. See
www.gmdexos.com.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
Use SAE 0W-40 viscosity grade
engine oil.
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.
If 0W-40 dexos2 oil is not available,
SAE 5W-30 dexos1 full synthetic
engine oil may be used for street use.
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.

Cadillac CTS/CTS-V Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12460273) - 2019 - CRC - 5/16/18
VEHICLE CARE 271
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. 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 servicepeople 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.
How to Reset the Engine Oil Life
System
Reset the system whenever the engine
oil is changed so that the system can
calculate the next engine oil change.
To reset the system:
1. Using the DIC buttons, display REMAINING OIL LIFE on the
DIC. See Driver Information Center
(DIC) 0138.
2. Press and hold SEL to clear the CHANGE ENGINE OIL SOON
message and reset the oil life
at 100%.
Be careful not to reset the oil life
display accidentally at any time
other than after the oil is