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Clean Diesel

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Ultra Clean Diesel Offers Even Lower Emissions

Pictured is the REG Grays Harbor, the company's biorefinery near Seattle.

REG Ultra Clean Diesel — a blend of renewable diesel and biodiesel — is now available for bulk purchase near Portland, Ore. It emits fewer emissions than conventional diesel, renewable diesel, or biodiesel.

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Final VW Diesel Modification Approved

Volkswagen has gained final approval on modifications to close its nearly three-year diesel...

Volkswagen has gained approval from air regulators of the final modification plan for the remaining vehicles that contain software designed to defeat emissions tests, the California Air Resources Board has announced.

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VW Names CEO, Restructures North American Unit

Volkswagen has appointed Matthias Muller, the chairman of Porsche AG, as its new chief executive to replace the departed Martin Winterkorn, and will restructure its North American operations in the wake of a scandal over diesel emissions.

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Volkswagen 'Deeply Sorry' About EPA Violation

Volkswagen's chief executive said the company is "deeply sorry" and plans to fully cooperate with the U.S. Environmental Protection Agency in its investigation of the automaker's use of software to get around federal emissions regulations.

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Europe Poised to Implement Real-World Emissions Tests

The European Commission will require “real world” vehicle emission tests beginning in 2017. Emissions approval for passenger cars in Europe will then include mandatory on-the-road tests using a portable emissions measurement system.