Engine Oil - GMC Cadillac CT5 2021 Manual

8. Brake Fluid Reservoir. See Brake
Fluid 0 328.
9. Remote Negative (-) Battery
Terminal. See Jump Starting - North
America 0 367.
10. Engine Compartment Fuse Block
0 334.

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 0 317.
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 0 312 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
VEHICLE CARE
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) Engine
315