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Fuels Models
This Web page provides information on models estimating emissions impacts to changes in fuel properties and composition.
For further information or assistance regarding this Web page, please contact: ASD Information Line, phone: (734) 214-4636 or email: asdinfo@epa.gov
Heavy-Duty Diesel Fuel Analysis Program
This Web page provides information on EPA's heavy-duty diesel fuel analysis program, which seeks to quantify the air pollution emission effects of diesel fuel parameters on various nonroad and highway heavy-duty diesel engines. The program will examine the hydrocarbon (HC), oxides of nitrogen (NOx) and particulate matter (PM) emission impacts of diesel fuel parameters including such parameters as cetane number, aromatics content, and fuel density.
Computer Models Related to the Reformulated Gasoline (RFG) Program
These models are used to determine whether gasoline complies with RFG and anti-dumping emissions performance standards.
Fuel Emulsions Analysis Program
This Web page provides information on EPA's research on the use of water-fuel emulsions in engine applications to help discern, and possibly quantify, their effects on emissions using existing data and studies. Specifically, EPA is looking at the effects that emulsions have on NOx, PM, HC, and fuel economy. This Web page contains updates on our research, including a list of relevant studies, presentations, and all draft and final documents that result from our studies.
Biodiesel Emissions Analysis Program
This Web page provides information on EPA's biodiesel emissions analysis program, which uses existing data to quantify the air pollution emission effects of biodiesel for diesel engines that have not been specifically modified to operate on biodiesel. The program will examine the emission impacts of biodiesel and biodiesel/diesel blends for both regulated and unregulated pollutants, as well as fuel economy.