Mile after mile, the injectors in your diesel power your performance on the road. The injectors are under extreme pressure, up to 35,000 PSI, which efficiently atomizes fuel, providing a cleaner burn for more power. But high pressure leads to high temperatures, which burns the oil inside your injector. The oil changes into a gummy, sticky residue coating the internals and creating friction. That sticky friction is called "stiction". Your injectors with stiction can't deliver optimum performance. First a decrease in turbo boost, then loss of power and hard starts. Your oil pressure drops; you experience hesitation, idling, and excessive black smoke. Your lifetime fuel mileage decreases. Severe cases of stiction are often misdiagnosed as "failed" injectors.
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