305 . . .
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Section
4
Choosing the Right Oil Viscosity
SAE 5W-30 is best for your vehicle.
Your vehicle requires the use of a
special oil meeting GM standard
GM4718M.
Substitute oil not meeting the
GM4718M standard should not be
used for an oil change.
If you are unable to find oil of the
recommended viscosity, then
consider the range of temperature
your vehicle will be operated in
before the next oil change and
use the chart to choose an
alternative that meets the required
quality standards.
Do not use SAE 20W-50 or any
other viscosity oil not
recommended.
NOTICE
Using engine oils of a viscosity
other than those recommended
could result in engine damage.
The repairs would not be
covered by your warranty.
°
C -30
-20
-10
0
10
20
30
40
50
°
F -22
-4
14
32
50
68
86
104
122
SAE 10W-40
SAE 5W-40
SAE 10W-30
SAE 5W-30
SAE 0W-30
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