Chevrolet 2012 Malibu Owner's Manual page 283

Service Operation
Replace pollen filter.
Replace air filter.
Replace spark plugs.
Replace ignition cable.
Replace diesel fuel filter.
Replace engine coolant.
Replace automatic transmission oil.
Replace auxiliary belt.
Replace timing belt, if equipped.
Replace timing chain.
Inspect valve clearance,
adjust if required.
Every 45 000 km (30,000 miles) / 2 years
Every 60 000 km (40,000 miles) / 4 years
Every 150 000 km (100,000 miles) / 4 years
Every 45 000 km (30,000 miles) / 3 years
Every 60 000 km (40,000 miles) / 2 years
Every 240 000 km (150,000 miles) / 5 years
Every 150 000 km (100,000 miles) for normal conditions,
every 75 000 km (50,000 miles) for severe conditions
Every 150 000 km (100,000 miles) / 10 years
Every 150 000 km (100,000 miles) / 10 years
Maintenance free
Every 150 000 km (100,000 miles) / 10 years
Service and Maintenance
Interval
10-5