1999 GMC Sierra 1500 Pickup Owner's Manual - Page 381

Scheduled Maintenance Services -1 ' I ThissectioncoversthemaintenancerequiredforyourGeneralMotorsvehicle. Your vehicleneedstheseservicestoretainit'ssafety,dependability,and emissioncontrolperformance. A Word About Maintenance ...Your Vehicle and the Environment ...Recording Maintenance Services ...Selecting Your Vehicle's Maintenance Services ...GasolineEngineswithLightDutyEmissionsMaintenance Schedule I ...GasolineEngineswithLightDutyEmissionsMaintenance Schedule II ...GasolineEngineswithHeavyDutyEmissionsMaintenance Schedule I ...7-10 GasolineEngineswithHeavyDutyEmissionsMaintenance Schedule II ...6.2Land6.5LDieselEnginesMaintenance Schedule I ...6.2Land6.5LDieselEnginesMaintenance Schedule II ...7-1 7-16 7-1 4 7-12 7-8 7-6 7-3 7-3 7-3 7-4 7-4 Scheduled Maintenance Services ...