There are several reliability issues with the 6.0L Powerstroke. The most significant of these include EGR and engine oil cooler failure, as well as head gasket failure. Other common reliability issues incude variable-geometry turbo (VGT) issues, fuel-injection control module (FICM) failure, and fuel injection system failures, among others. It is interesting to note that the 6.0L engine has proven to be significantly more reliable in it’s original application, powering medium-duty International trucks. This can be attributed to significantly lower-horsepower tunes, as well as a more open engine compartment which allows for better airflow through the radiator and better heat dissipation from the engine.