Kia has come a long way from its humble beginnings in the 1970s. What was once a brand that licensed cars and motorcycles from Japanese brands, today pushes the boundaries on what's possible in an ...

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 ...

Before the turn of the millennium, you wouldn't find many people complaining about carbon deposits on engine valves. However, all of that changed as gasoline direct injection (GDi) went mainstream in ...