Third-party laboratory testing has confirmed that the medium/heavy duty engine cylinder deactivation (CDA) technology developed by Jacobs Vehicle Systems improves fuel consumption by up to 5% while ...

Tula’s Diesel Dynamic Skip Fire is an advanced cylinder deactivation control strategy that makes decisions for an engine’s cylinders on an individual basis to best meet torque demands while cutting ...

The EPA’s recently published final rule on NOx reduction pushes truck and engines makers into dangerous territory. They are adamant that the rule is technically infeasible. EPA is equally adamant it ...

Vehicles that burn petrol or diesel emit a type of pollution called NOx, which is linked to most of the hundreds of annual deaths attributed to air pollution from vehicles. Real-world testing shows ...

Imagine you're stopped at the lights and two cars pull up beside you. One is a compact SUV, the other a beefy four-wheel drive that weighs twice as much. The off-roader has a petrol engine, while the ...