2022 CADILLAC CT5 engine

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 329
under the terms of the vehicle
warranty and may affect remaining
warranty coverage for affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle using
genuine GM Accessories installed by a
dealer technician.
Also, seeAdding Equipment to the
Airbag-Equipped Vehicle 065.
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have the
proper knowledge, service manual,
tools, or parts. Always follow
owner’s manual procedures and
consult the service manual for your
vehicle before doing any
service work. If doing some of your own service
work, use the proper service manual.
It tells you much more about how to
service the vehicle than this manual
can. To order the proper service
manual, see
Publication Ordering
Information 0440.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 065.
If equipped with remote vehicle start,
open the hood before performing any
service work to prevent remote
starting the vehicle accidentally. See
Remote Vehicle Start 013.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0423.
Caution
Even small amounts of
contamination can cause damage to
vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
For vehicles with auto engine stop/
start, turn the vehicle off before
opening the hood. If the vehicle is
on, the engine will start when the
hood is opened. You or others could
be injured.
{Warning
Components under the hood can
get hot from running the engine. To
help avoid the risk of burning
unprotected skin, never touch these
components until they have cooled,
and always use a glove or towel to
avoid direct skin contact.
Clear any snow from the hood before
opening.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 331
Engine Compartment Overview
2.0L L4 Engine

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
332 VEHICLE CARE
1. Windshield Washer Fluid Reservoir.See Washer Fluid 0348.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 343.
3. Engine Air Cleaner/Filter 0341.
4. Engine Cooling Fan (Out of View). See Cooling System 0343.
5. Engine Oil Fill Cap. See Engine Oil
0 336.
6. Engine Oil Dipstick. See Engine Oil
0 336.
7. Remote Positive (+) Battery Terminal. See Jump Starting - North
America 0394.
8. Brake Fluid Reservoir. See Brake
Fluid 0352.
9. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0394.
10. Engine Compartment Fuse Block
0360.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 333
3.0L V6 Engine

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
334 VEHICLE CARE
1. Windshield Washer Fluid Reservoir.See Washer Fluid 0348.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 343.
3. Engine Oil Dipstick. See Engine Oil
0 336.
4. Engine Air Cleaner/Filter 0341.
5. Engine Cooling Fan (Out of View). See Cooling System 0343.
6. Engine Oil Fill Cap. See Engine Oil
0 336.
7. Remote Positive (+) Battery Terminal. See Jump Starting - North
America 0394.
8. Brake Fluid Reservoir. See Brake
Fluid 0352.
9. Remote Negative (-) Battery Terminal. See Jump Starting - North
America 0394.
10. Engine Compartment Fuse Block
0360.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 335
6.2L V8 Engine
1. Windshield Washer Fluid Reservoir. See Washer Fluid 0348.
2. Engine Coolant Surge Tank and Pressure Cap. See Cooling System
0 343.
3. Engine Air Cleaner/Filter 0341. 4. Engine Oil Dipstick. See
Engine Oil
0 336.
5. Engine Cooling Fan (Out of View). See Cooling System 0343.
6. Engine Oil Fill Cap. See Engine Oil
0 336. 7. Remote Positive (+) Battery
Terminal. See Jump Starting - North
America 0394.
8. Brake/Clutch Fluid Reservoir. See Brake Fluid 0352.

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
336 VEHICLE CARE
9. Remote Negative (-) BatteryTerminal. See Jump Starting - North
America 0394.
10. Engine Compartment Fuse Block
0360.
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 0338.
.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 0331 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.
.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 (LSY) Engine
3.0L V6 Twin Turbo (LGY) and 6.2L V8
(LT4) Engines

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-15268585) -
2022 - CRC - 10/11/21
VEHICLE CARE 337
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 0426.
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
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
0 331 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
Selecting the right engine oil depends
on both the proper oil specification
and viscosity grade. See Recommended
Fluids and Lubricants 0420.
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.
Caution
Failure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
For the 2.0L L4 Turbo (LSY) engine,
use SAE 0W-20 viscosity grade
engine oil.
For the 3.0L V6 Twin Turbo (LGY)
engine, use SAE 5W-30 viscosity grade
engine oil. Cold Temperature
Operation: In an area of extreme cold,
where the temperature falls below
−29 °C (−20 °F), an SAE 0W-30 oil may
be used. An oil of this viscosity grade
will provide easier cold starting for the
engine at extremely low temperatures.
For the 6.2L V8 (LT4) engine, use SAE
0W-40 viscosity grade engine oil. GM
recommends Mobil 1 engine oil that
shows the dexos2 approved logo.
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.