Oil pressure is everything for a 7.3L. One of the most common questions we get asked is related to how to test the High Pressure Oil Pump (HPOP) on a 7.3L Powerstroke. We say related to, because the h … read more

The 7.3L and 6.0L Power Stroke engines are somewhat unique in that they use oil pressure to run their fuel injection systems. The system was created with a joint venture between Caterpillar and Intern … read more

Good clean oil is extremely important to a 7.3L. Moreso than for most other engines. That's because the oil is used differently than with most other engines. The 7.3L injection system is more like a h … read more