Volvo Trucks North America has announced the availability of an engine that meets the California Air Resources Board (CARB) 2024 Omnibus regulation. This CARB rule sets the requirements for low ...

A purge valve is a vital component of a vehicle's evaporative emission control (EVAP) system. Its function is to control the flow of fuel vapors from the fuel tank and evaporative canister into the ...

California Attorney General (AG) Rob Bonta and the California Air Resources Board (the Board) have reached a $46 million agreement with engine manufacturer Cummins Inc. to settle alleged violations of ...

Last month we began our discussion of emission systems by examining various crankcase and fuel vapor control devices, along with throttle and carburetion equipment aimed at reducing automotive exhaust ...

Regardless of what type of vehicle you drive, if it was built in the last few decades, its engine has some form of emissions control system designed to reduce the harmful environmental impacts of ...

Volvo on Thursday added a third D13 engine model to its product line, the newest one compliant with California Air Resources Board (CARB) 2024 Omnibus regulation requirements for low nitrogen oxide ...

Don’t count diesel out. Cummins announced a concept diesel emissions system today at the IAA Commercial Vehicles Show in Hannover, Germany which the company says will increase fuel efficiency and ...

For our industry, the year 2027 means meeting lower NOx standards while using less fuel. Under old diesel design rules, this would be quite problematic because NOx forms at the high cylinder ...

Electronic Fuel Injection (EFI) is a solution that guarantees a low emission as well as a fuel consumption optimization, for small motors that, otherwise, can be very polluting. This fact underlines ...

To most of us, emission control systems are some sort of "black art" devices that have been forced upon us to rob performance and ruin gas mileage, but that's really not the whole story. Air pollution ...