The GM wet timing belt in the Trax is likely HNBR. GM learned from Ford's mistakes, engineering dexos oil to be compatible and provide cooling. The 1.2L engine has been in use 5 years with no widespread belt-related failures documented. GM's approach is holistic, treating oil as an active component, and they expect the belt to last 150,000 miles.
Pros: no widespread failures, learned from mistakes, holistic design, 150,000 mile interval
Cons: requires specific oil
Vehicle:
Chevrolet
Mileage: 241401 km
Part number: 55489417
