A close-up of a corroded exhaust valve filled with carbon deposits. - HelgaQ/Shutterstock Before the turn of the millennium, you wouldn't find many people complaining about carbon deposits on engine ...

While carbon buildup happens on essentially all engines, gasoline, diesel, N/A, or boosted, it's an increased concern in GDI engines. Standard Electronic Fuel Injection features injectors higher in ...

Carbon deposits are a normal occurrence in an engine, but can build up over time, causing problems. Essentially, heat, pressure, and oxidation can transform unburned fuel into a black soot-like ...