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Roush CleanTech Launches Near-Zero Emissions Engine

Roush CleanTech revealed that its 0.02 grams per brake horsepower-hour engine can operate on renewable propane. The company says it's the first available engine for renewable propane that brings emission levels to "near-zero" as defined by California Air Resources Board.

Cummins Westport ISX12N Engine Tested for Performance

An independent, third-party study on the Cummins Westport ISX12N 400 hp natural gas engine recently demonstrated that the engine meets and exceeds California Air Resources Board’s (CARB) optional Low NOx standard of 0.02 g/bhp-hr.