Cummins Diesels Meet Idle Limit Rules In California

The complete line of Cummins truck diesels can now meet Clean Idle requirements in California, allowing those engines to idle beyond the state Air Resources Board's five-minute limit, the builder announced. Cummins'

ISX, ISM, ISL, ISC and ISB meet the new regulation by generating less than 30-gram-per-horsepower-per-hour limit for emissions of oxides of nitrogen, or NOx, at idle.
Effective immediately, Cummins customers can specify a 50-state Clean Idle Certified engine option when ordering a new vehicle. Existing 2007-and-later engines can be updated to meet the limit at Cummins distributors to meet the 50-state Clean Idle Certified status.
Updating involves reprogramming an engine's electronic control module and costs $300 to $500, Cummins sources said. Distributors will also apply a sticker to a truck's nose that alerts enforcement officers that its engine is idle-legal.
The engines' clean-idle ability complements and supports other available electronic engine features such as the programmable idle shutdown timer. Together these features help reduce a customer's idle time and fuel consumption, thus, only allowing idling for those periods where a driver needs cab comfort while logged out of service.