Ford Powerstroke Diesel Engines: Identify Your Engine by the 8th Digit of the VIN If you drive a Ford Super Duty diesel, knowing exactly which Powerstroke engine is under the hood is crucial for maintenance, performance upgrades, and ordering the right parts. The 8th digit of your VIN reveals your engine’s generation—each with its own strengths, quirks, and specs. Here’s a comprehensive guide to Powerstroke VIN identification, model applications, and factory performance numbers. Power...