Automakers have long touted the benefits of fuel injection, claiming increased efficiency and power. But as more cars have the system installed (around 73% in 2023), more and more consumers are ...

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 ...

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 ...

If you have ever stared at a disassembled engine, you might have noticed that the cylinder heads looked like they were pulled out of a tar pit. Decades of baked-in oil varnish, carbon scaling, and ...