Operation CHARM
: Car repair manuals for everyone.
Home
>>
GMC Truck
>>
2012
>>
Sierra 3500 Denali 4WD V8-6.6L DSL Turbo
>>
Repair and Diagnosis
>>
Maintenance
>>
Service Intervals
>>
Severe Service
>>
78750 MI or 126000 KM
78750 MI or 126000 KM
Replace
Oil Filter, Engine
Engine Oil
Change engine oil and filter, or every 12 months whichever occurs first. Reset the oil life system.