Besides keeping the oil clean, fuel is the second major issue that affects 6.0L injectors. Poor quality fuel containing dirt and water is a recipe for 6.0L injector disaster. Additionally, because fuel in the injector is used to provide a cushioning action for the internal valving of the injector, low fuel pressure will severely harm the injectors. Clogged fuel filters caused by neglected maintenance intervals are a common reason for injector damage. We recommend that fuel filters be serviced at 15,000 mile intervals. Low pressure caused by a failing fuel pump can cause repeat injector failure. ALWAYS check fuel pressure after installing new injectors - it should be between 45 and 55 PSI and should not drop below this spec under load. Running a 6.0L Powerstroke out of fuel should be avoide.
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