Scheduled Maintenance (Gasoline Engine) - Chevrolet 2008 Silverado 1500 Pickup Owner's Manual

The proper replacement parts, fluids, and lubricants to
use are listed in Recommended Fluids and Lubricants
on page 6-14 and Maintenance Replacement Parts
on page 6-16. When your vehicle is serviced, make sure
these are used. All parts should be replaced and all
necessary repairs done before you or anyone else
drives the vehicle. We recommend the use of genuine
parts from your dealer/retailer.
Scheduled Maintenance (Gasoline
Engine)
This maintenance section applies to vehicles with a
gasoline engine. If your vehicle has a diesel engine, see
the maintenance schedule section in the DURAMAX
Diesel manual.
When the CHANGE ENGINE OIL SOON message
comes on, it means that service is required for your
vehicle. Have your vehicle serviced as soon as possible
within the next 600 miles (1 000 km). It is possible
that, if you are driving under the best conditions, the
engine oil life system may not indicate that vehicle
service is necessary for over a year. However, your
engine oil and filter must be changed at least once a
year and at this time the system must be reset.
Your dealer/retailer has trained service technicians who
will perform this work using genuine parts and reset
the system.
6-4
If the engine oil life system is ever reset accidentally,
you must service your vehicle within 3,000 miles
(5 000 km) since your last service. Remember to reset
the oil life system whenever the oil is changed. See
Engine Oil Life System on page 5-18 for information on
the Engine Oil Life System and resetting the system.
When the CHANGE ENGINE OIL SOON message
appears, certain services, checks, and inspections are
required. Required services are described in the
following for "Maintenance I" and "Maintenance II."
Generally, it is recommended that your first service be
Maintenance I, your second service be Maintenance II,
and that you alternate Maintenance I and Maintenance II
thereafter. However, in some cases, Maintenance II
®
may be required more often.
Maintenance I — Use Maintenance I if the
CHANGE ENGINE OIL SOON message comes on
within 10 months since the vehicle was purchased or
Maintenance II was performed.
Maintenance II — Use Maintenance II if the
previous service performed was Maintenance I. Always
use Maintenance II whenever the message comes
on 10 months or more since the last service or if the
message has not come on at all for one year.