A well-running and adequately maintained diesel engine should produce no visible smoke from the tailpipe. Modern diesel engines equipped with common-rail direct-injection technology have unlocked more ...

Despite what old cartoons would have you believe, it's neither normal nor good for your vehicle to smoke heavily while it's running. Maybe in the old days, but modern cars with modern fuel injection, ...

Internal combustion engine blowby, whether gasoline or diesel, occurs when part of the compressed mixture of air and fuel leaks past the piston rings during the compression or power strokes of a ...

When it comes to keeping a diesel engine running smoothly, few components are more critical than the fuel system. Often referred to as the engine’s “heart,” the fuel system is responsible for ...