The Exhaust Gas Recirculation (EGR) system is a common emissions control component found on modern diesel and gasoline engines. Its […] ...

Instead of offering a one-size-fits-all sporty variant, Mazda3 owners can pick, choose, and personalize their ride.

Crankcase breathers play a big role in reducing diesel engine emissions by recirculating blow-by gases back into the engine.

These hulking diesel engines power the economy with massive torque, hundreds of horsepower, and hard-driving reliability.