Yup. We still work on plenty of these! The old school 7.3 Strokes. This one came in really sick…running on about 3 cylinders, then stalling with a no start. Owner just bought the truck. Fuel pressure test revealed about 10psi….not happening. Then a fuel sample was taken….scary to say the least. It’s amazing what some folks will do. Nosing around (literally) told us some jack wagon tried running cooking oil….unfiltered, unheated, rancid and poured directly in the tank……