"Blow-by" is a fairly common term across all types of engines—diesel, gas, etc. For diesels, it's when compressed air and fuel in the cylinder bore is greater than pressure in the oil pan, and gas ...

Federal-Mogul Powertrain has upgraded its Goetze Diamond Coating (GDC) for piston rings, a technology used ub heavy-duty diesel engine requirements for over 10 years. The new coating, GDC60, has ...

Just as we debate which truck manufacturer is the best—engineers debate which material is the best. When it comes to diesel pistons, right now it’s hard to tell which material (aluminum or steel) will ...