display CHEVROLET C/K 2003 Owner's Manual

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How to Reset the Change Oil Light
The GM Oil Life System
calculates when to change
your engine oil and filter based on vehicle use. Anytime
your oil is changed, reset the system so it can calculate
when the next oil change is required. If a situation
occurs where you change your oil prior to a change oil
light being turned on, reset the system.
To reset the change oil light, do the following:
1. Turn the ignition key to RUN with the engine off.
2. Fully press and release the accelerator pedal three
times within 10 seconds.
If the change oil light flashes for five seconds, the
system is reset. If the light does not display for five
seconds, you will need to repeat the steps.What to Do with Used Oil
Used engine oil contains certain elements that may be
unhealthy for your skin and could even cause cancer.
Don't let used oil stay on your skin for very long. Clean
your skin and nails with soap and water, or a good hand
cleaner. Wash or properly throw away clothing or rags
containing used engine oil. See the manufacturer's
warnings about the use and disposal of oil products.
Used oil can be a threat to the environment. If you
change your own oil, be sure to drain all the oil from the
filter before disposal. Never dispose of oil by putting it
in the trash, pouring it on the ground, into sewers, or
into streams or bodies of water. Instead, recycle it by
taking it to a place that collects used oil. If you have a
problem properly disposing of your used oil, ask your
dealer, a service station or a local recycling center
for help.

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SAE 15W-40
As shown in the viscosity chart, SAE 15W
-40 is
best for your vehicle. However, you can use SAE
10W
-30 at temperatures above 0F (-18C).
When it's very cold, below 0F (
-18C), you should
use SAE 5W
-40 to improve cold starting.
These numbers on the oil container show its
viscosity, or thickness. Do not use other viscosity
oils such as SAE 10W
-40 or SAE 20W-50.
This doughnut-shaped logo
(symbol) is used on most
oil containers to help you
select the correct oil. It
means that the oil has been
certified by the American
Petroleum Institute.
You should look for this on the oil container, and use
only those oils that display the logo.
GM Goodwrench
 oil of the recommended viscosity
grades meets all the requirements for your vehicle.