Service manual
SAE
1OW-30
As
shown in the viscosity chart, SAE 1OW-30 is best for your vehicle.
However, you can use
SAE
5W-30
if
it’s going to be colder than 60°F
(16°C) before your next oil change. When it’s very cold, below
O°F
(-18”C),
you should use SAE 5W-30.
These numbers
on
an oil container show its viscosity,
or
thickness.
Do
not
use other viscosity oils such as SAE 1OW-40 or SAE
20W-50.
Energy Conserving
I1
Oils with these words
on
the container
will
help
you
save fuel.
This doughnut-shaped logo (symbol) is used on most
oil
containers to
help you select the correct
oil.
You should
look
for this
on
the oil container, and use
only
those oils that
display the logo.
GM Goodwrench@
oil
(in Canada,
GM
Engine Oil) meets all the
requirements for your vehicle.
Engine Oil Additives:
Don’t add anything to your oil. Your Cadillac
dealer is ready to advise if you think something should be added.
When to Change Engine
Oil:
Your vehicle is equipped with an Engine Oil
Life Index (EOLI) feature. Oil change intervals are determined by the
EOLI and will usually fall at, or between, the two recommended
alternative intervals of 3,000 miles
(5,000
kilometers) and
7,500
miles
(12,500
kilometers), but could be shorter than 3,000 miles (5,000
kilometers) under some very severe driving conditions shown in Schedule
I.
The system will also indicate the need for an oil change
if
7,500
miles
(12,500
kilometers) has been driven.
Engine oil life remaining is displayed through the Fuel Data center and as
a
“CHANGE
OIL
SOON”
light. The Fuel Data center display includes a
number between
0
and
100.
This is the percentage of oil life
REMAINING
based
on
driving conditions and mileage driven since the
last time the oil life indicator was reset.
The
EOLI
will
not detect excessively dusty conditions or engine
malfunctions which may effect the
oil.
If
you drive in dusty areas, change
the engine
oil
after every
3,000
miles
(5,000
kilometers) or
3
months
(whichever comes first), unless instructed to
do
so
sooner by the
EOLI.
c-
LC
c-
.-
-
c-
.L
.,
272