Product Alert: Fuel Additives

The California Air Resources Board (CARB) has conducted emissions testing designed to determine, consistent with the emissions mitigation requirements of CARB’s Regulation on the Commercialization of Alternative Diesel Fuels (ADF regulation), that additives certified pursuant to that regulation are effective at mitigating biodiesel NOx emissions to equivalence with CARB diesel.

This testing was conducted at the University of California, Riverside, and included the additives listed in the attachment summary to this notice. The testing showed that the additives failed to effectively mitigate to the regulatory standard. These results raise
significant questions both as to the specific additives addressed by the testing and regarding how best to ensure appropriate performance of additives and formulations generally under the ADF regulation going forward.

BY: The California Air Resources Board