Institute Certified For Gasoline Engines; Use only engine oil with the American Petroleum; starburst symbol. Failure to use the- Page 256

6-14

As shown in the chart, SAE 5W

-

30 is best for your

vehicle. However, you can use SAE 10W

-

30 if it’s going

to be 0

_

F (

-

18

_

C) or above. These numbers on an oil

container show its viscosity, or thickness. Do not use
other viscosity oils, such as SAE 20W

-

50.

NOTICE:

Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
starburst symbol. Failure to use the
recommended oil can result in engine damage 
not covered by your warranty.

GM Goodwrench

R

 oil meets all the requirements for

your vehicle.

If you are in an area where the temperature falls below

-

20

_

F (

-

29

_

C), consider using either an SAE 5W

-

30

synthetic oil or an SAE 0W

-

30 oil. Both will provide

easier cold starting and better protection for your engine
at extremely low temperatures.