GMC duramax diesel 2016 Supplement Manual page 118

last service. Reset the oil life
system when the oil is changed.
See Engine Oil Life System 0 96.
Required Services Every
12 000 km/7,500 mi
Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil 0 92 and Engine Oil Life
System 0 96.
Check engine coolant level. See
Engine Coolant 0 105.
Visually check for fluid leaks.
Inspect engine air cleaner filter.
See Engine Air Cleaner/
Filter 0 101.
Visually inspect fuel system for
damage or leaks.
Visually inspect exhaust system
and nearby heat shields for
loose or damaged parts.
Service and Maintenance 117