06/25/2026Published by VFI Diesel on 06/25/2026Categories Diesel Engine DiagnosticsDiesel Fuel InjectionTurbocharger ServiceDiesel Engine Blue Smoke: Causes & DiagnosisDiesel Engine Blue Smoke: Causes, Diagnosis & What It’s Telling You Diesel engine blue smoke is almost always burning oil. Unlike black smoke (excess fuel) or […]
05/01/2026Published by VFI Diesel on 05/01/2026Categories Diesel Fuel InjectionDiesel Engine MaintenanceTurbocharger ServiceDiesel Engine Losing Oil Pressure: 7 Causes & FixesA diesel engine losing oil pressure is one of the fastest ways to turn a running truck into a pile of scrap metal — and it […]