GM Service Manual Online
For 1990-2009 cars only

Maintenance Schedule - Long Trip/Highway Gas

Long Trip/Highway Scheduled Maintenance (Gasoline)

Refer to Long Trip/Highway Scheduled Maintenance (Gasoline), General Information, Maintenance and Lubrication, in the 1999 C/K Service Manual.

Maintenance Schedule - Long Trip/Highway Diesel

Long Trip/Highway Scheduled Maintenance (Diesel)

Refer to Long Trip/Highway Scheduled Maintenance (Diesel), General Information, Maintenance and Lubrication, in the 1999 C/K Cervices Manual.